# 核

| 核 | U+6838, &#26680; CJK UNIFIED IDEOGRAPH-6838 |
| ← 样 [U+6837] | CJK Unified Ideographs | 根 → [U+6839] |

## Translingual
### Han character

核 (Kangxi radical 75, 木+6, 10 strokes, cangjie input 木卜女人 (DYVO), four-corner 4098$_2$, composition ⿰木亥)

#### Derived characters

* 𫈺

#### Related characters

* 覈 (Variant form in mainland China)

#### References

* Kangxi Dictionary: page 524, character 4
* Dai Kanwa Jiten: character 14743
* Dae Jaweon: page 912, character 7
* Hanyu Da Zidian (first edition): volume 2, page 1206, character 4
* Unihan data for U+6838

## Chinese
### Glyph origin

| | Old Chinese |
| 該 | *kɯː |
| 垓 | *kɯː |
| 賅 | *kɯː |
| 陔 | *kɯː |
| 豥 | *kɯː, *ɡɯː |
| 荄 | *kɯː, *krɯː |
| 郂 | *kɯː |
| 姟 | *kɯː |
| 絯 | *kɯː, *ɡrɯːʔ |
| 晐 | *kɯː |
| 峐 | *kɯː |
| 侅 | *kɯː, *kʰɯː, *ɡɯːʔ, *ɡrɯːʔ |
| 胲 | *kɯː |
| 頦 | *kɯːʔ, *ɡɯː |
| 奒 | *kʰɯː |
| 輆 | *kʰɯːʔ |
| 欬 | *kʰɯːɡs, *qraːds |
| 硋 | *ŋɡɯːɡs |
| 閡 | *ŋɡɯːɡs |
| 咳 | *qʰɯː, *ɡɯː |
| 孩 | *ɡɯː |
| 亥 | *ɡɯːʔ |
| 劾 | *ɡɯːɡs, *kʰrɯːɡs, *ɡɯːɡ |
| 痎 | *krɯː |
| 烗 | *kʰrɯːɡs |
| 骸 | *ɡrɯː |
| 駭 | *ɡrɯːʔ |
| 刻 | *kʰɯːɡ |
| 餩 | *qɯːɡ |
| 核 | *ɡuːd, *ɡrɯːɡ |
Phono-semantic compound (形聲／形声, OC *ɡuːd, *ɡrɯːɡ) : semantic 木 (“tree”) + phonetic 亥 (OC *ɡɯːʔ) – a kind of tree. Modern meanings are borrowed.

### Etymology 1

The definitions related to “to examine” come from the “kernel” sense, i.e. “to go to the core” (Schuessler, 2007).
Generally thought to be of Sino-Tibetan origin. It has been compared to Tibetan རག་ཙེ (rag tse), Karbi rak (Gong, 2002; Schuessler, 2007). However, Hill (2012) rejects the connection to the Tibetan word because most words ending with ཙེ (tse) are loanwords from Chinese words ending with the 子 suffix.
Smith (2011) groups this word with the following terms into a word family meaning “root, germ, generative core”:
* 荄 (OC *kɯː, “grassroot”) and its derivative 根 (OC *kɯːn, “root”),
* 骸 (OC *ɡrɯː, “(human) bones”) (also noted by Schuessler, 2007),
* 孩 (OC *ɡɯː, “child”),
* 亥 (OC *ɡɯːʔ, “sprouting stage”), i.e. "the moon’s first appearance" > "twelfth earthly branch".

#### Pronunciation 1

* Mandarin
    (Standard)
       (Pinyin): hé, hú (he$^2$, hu$^2$)
       (Zhuyin): ㄏㄜˊ, ㄏㄨˊ
    (Chengdu, Sichuanese Pinyin): he$^2$
* Cantonese (Jyutping): wat$^6$ / wat$^{6-2}$ / hat$^6$
* Hakka
    (Sixian, PFS): fu̍t / ha̍k / het
    (Meixian, Guangdong): hêd$^6$ / fud$^6$ / hag$^6$
* Jin (Wiktionary): heh$^5$ / geh$^5$
* Eastern Min (BUC): hŏk
* Puxian Min (Pouseng Ping'ing): hoh$^7$ / huoh$^7$ / heh$^7$
* Southern Min
    (Hokkien, POJ): hu̍t / ha̍t / he̍k / hia̍k / he̍rt
    (Teochew, Peng'im): hêg$^4$ / hug$^8$
* Wu (Shanghai, Wugniu): $^8$gheq; $^8$ngeq; $^8$weq
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: hé
*** Zhuyin: ㄏㄜˊ
*** Tongyong Pinyin: hé
*** Wade–Giles: ho$^2$
*** Yale: hé
*** Gwoyeu Romatzyh: her
*** Palladius: хэ (xɛ)
*** Sinological IPA : /xɤ³⁵/
** (Standard Chinese, erhua-ed) (核兒／核儿)
*** Hanyu Pinyin: hér
*** Zhuyin: ㄏㄜˊㄦ
*** Tongyong Pinyin: hér
*** Wade–Giles: ho$^2$-ʼrh
*** Yale: hér
*** Gwoyeu Romatzyh: her'l
*** Palladius: хэр (xɛr)
*** Sinological IPA : /xɤɻ³⁵/
** (Standard Chinese, colloquial variant)
*** Hanyu Pinyin: hú
*** Zhuyin: ㄏㄨˊ
*** Tongyong Pinyin: hú
*** Wade–Giles: hu$^2$
*** Yale: hú
*** Gwoyeu Romatzyh: hwu
*** Palladius: ху (xu)
*** Sinological IPA : /xu³⁵/
** (Standard Chinese, erhua-ed) (核兒／核儿)
*** Hanyu Pinyin: húr
*** Zhuyin: ㄏㄨˊㄦ
*** Tongyong Pinyin: húr
*** Wade–Giles: hu$^2$-ʼrh
*** Yale: húr
*** Gwoyeu Romatzyh: hwul
*** Palladius: хур (xur)
*** Sinological IPA : /xuɻʷ³⁵/
** (Chengdu)
*** Sichuanese Pinyin: he$^2$
*** Scuanxua Ladinxua Xin Wenz: xe
*** Sinological IPA : /xɛ²¹/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: wat$^6$ / wat$^{6-2}$ / hat$^6$
*** Yale: waht / wát / haht
*** Cantonese Pinyin: wat$^9$ / wat$^{9-2}$ / hat$^9$
*** Guangdong Romanization: wed$^6$ / wed$^{6-2}$ / hed$^6$
*** Sinological IPA : /wɐt̚²/, /wɐt̚²⁻³⁵/, /hɐt̚²/
* wat6/wat6-2 - “seed; kernel”;
* hat6 - “nucleus; nuclear”.
* Dialectal data
| Variety | Location | edit核 |
| Mandarin | Beijing | /xɤ³⁵/ |
| Mandarin | Harbin | /xɤ²⁴/ |
| Mandarin | Tianjin | /xɤ⁴⁵/ ～算 /xu⁴⁵/ 棗～兒 |
| Mandarin | Jinan | /xə⁴²/ |
| Mandarin | Qingdao | /xɛ⁴²/ ～心 /xuə⁴²/ ～桃 |
| Mandarin | Zhengzhou | /xai⁴²/ |
| Mandarin | Xi'an | /xai²¹/ ～算 /xu²⁴/ 桃～儿 |
| Mandarin | Xining | /xɛ⁴⁴/ |
| Mandarin | Yinchuan | /xa¹³/ ～算 /xɛ¹³/ ～算 /xə¹³/ ～算 /xɯ¹³/ ～桃 |
| Mandarin | Lanzhou | /xə⁵³/ /xu⁵³/ |
| Mandarin | Ürümqi | /xɤ⁵¹/ /xu⁵¹/ |
| Mandarin | Wuhan | /xɤ²¹³/ |
| Mandarin | Chengdu | /xe³¹/ |
| Mandarin | Guiyang | /xɛ²¹/ |
| Mandarin | Kunming | /xə³¹/ |
| Mandarin | Nanjing | /xəʔ⁵/ |
| Mandarin | Hefei | /xɐʔ⁵/ |
| Jin | Taiyuan | /xəʔ²/ ～算 /kəʔ⁵⁴/ ～桃 |
| Jin | Pingyao | /kʌʔ⁵³/ ～桃 /kʰʌʔ¹³/ 審～ |
| Jin | Hohhot | /xaʔ⁴³/ ～算 /xu³¹/ 棗～子 |
| Wu | Shanghai | /ɦəʔ¹/ /ŋəʔ¹/ /ɦuəʔ¹/ |
| Wu | Suzhou | /ŋəʔ³/ |
| Wu | Hangzhou | /ɦɑʔ²/ |
| Wu | Wenzhou | /jy²¹³/ |
| Hui | Shexian | /xɛʔ²¹/ ～對 /xɛ²²/ 山～桃 |
| Hui | Tunxi | /xə¹¹/ /uən²⁴/ |
| Xiang | Changsha | /xə²⁴/ |
| Xiang | Xiangtan | /hæ²⁴/ |
| Gan | Nanchang | /hɛʔ²/ |
| Hakka | Meixian | /hak̚⁵/ |
| Hakka | Taoyuan | /het̚²²/ |
| Cantonese | Guangzhou | /hɐt̚²/ ～對 /wɐt̚²/ 桃～ |
| Cantonese | Nanning | /wɐt̚²²/ |
| Cantonese | Hong Kong | /hɐt̚²/ ～對 /wɐt̚²/ 桃～ |
| Min | Xiamen (Hokkien) | /hik̚⁵/ |
| Min | Fuzhou (Eastern Min) | /houʔ⁵/ |
| Min | Jian'ou (Northern Min) | /xo⁴⁴/ 名 /xɛ²⁴/ 動 |
| Min | Shantou (Teochew) | /hek̚²/ /huk̚⁵/ |
| Min | Haikou (Hainanese) | /hut̚⁵/ |
* Old Chinese
    (Baxter–Sagart): /*[ɡ]ˤ<r>ək/
    (Zhengzhang): /*ɡuːd/
Baxter–Sagart system 1.1 (2014) :
| Character | 核 |
| Reading # | 1/1 |
| Modern Beijing (Pinyin) | hé |
| Middle Chinese | ‹ hɛk › |
| Old Chinese | /*[ɡ]ˁ<r>ək/ |
| English | kernel fruit; scrutinize |
| Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "" indicate uncertain presence; * Square brackets "" indicate uncertain identity, e.g. *[t] as coda may in fact be *-t or *-p; * Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary. ||
Zhengzhang system (2003) :
| Character | 核 |
| Reading # | 1/2 |
| No. | 4334 |
| Phonetic component | 骨 |
| Rime group | 物 |
| Rime subdivision | 2 |
| Corresponding MC rime | 搰 |
| Old Chinese | /*ɡuːd/ |
| Notes | 𣝗字訓讀 |

##### Definitions

核
* seed; pit; stone; kernel; core; nut (Classifier: 粒 c)
    𦧲核 [Cantonese] ― loe$^1$ wat$^6$ [Jyutping] ― to spit out seeds
* (computing) -core
    See also: 核心
    4核 ― 4-hé ― quad-core
* (physics, chemistry, biology) nucleus
* (physics) nuclear
* (mathematics, algebra, linear algebra) kernel
* (Hokkien) swelling in the lymph glands (lymphatic hard lumps due to inflammation, etc.)
* (Xiamen and Zhangzhou and Taiwanese Hokkien) small formed lump
* (Xiamen and Zhangzhou Hokkien) Classifier for fruits with a pit inside.

###### Synonyms

* (seed): (Sichuan) 核核兒／核核儿

#### Pronunciation 2

* Mandarin
    (Standard)
       (Pinyin): hé (he$^2$)
       (Zhuyin): ㄏㄜˊ
    (Chengdu, Sichuanese Pinyin): he$^2$
* Cantonese (Jyutping): hat$^6$
* Hakka
    (Sixian, PFS): het
    (Meixian, Guangdong): hêd$^6$
* Southern Min
    (Hokkien, POJ): hu̍t
    (Teochew, Peng'im): hug$^8$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: hé
*** Zhuyin: ㄏㄜˊ
*** Tongyong Pinyin: hé
*** Wade–Giles: ho$^2$
*** Yale: hé
*** Gwoyeu Romatzyh: her
*** Palladius: хэ (xɛ)
*** Sinological IPA : /xɤ³⁵/
** (Chengdu)
*** Sichuanese Pinyin: he$^2$
*** Scuanxua Ladinxua Xin Wenz: xe
*** Sinological IPA : /xɛ²¹/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: hat$^6$
*** Yale: haht
*** Cantonese Pinyin: hat$^9$
*** Guangdong Romanization: hed$^6$
*** Sinological IPA : /hɐt̚²/
* Hakka
** (Sixian, incl. Miaoli and Neipu)
*** Pha̍k-fa-sṳ: het
*** Hakka Romanization System: hed$^ˋ$
*** Hagfa Pinyim: hed$^5$
*** Sinological IPA: /het̚²/
** (Meixian)
*** Guangdong: hêd$^6$
*** Sinological IPA: /hɛt̚⁵/
* Southern Min
** (Hokkien: Xiamen, Quanzhou, Zhangzhou)
*** Pe̍h-ōe-jī: hu̍t
*** Tâi-lô: hu̍t
*** Phofsit Daibuun: hut
*** IPA (Quanzhou): /hut̚²⁴/
*** IPA (Xiamen): /hut̚⁴/
*** IPA (Zhangzhou): /hut̚¹²¹/
** (Teochew)
*** Peng'im: hug$^8$
*** Pe̍h-ōe-jī-like: hu̍k
*** Sinological IPA : /huk̚⁴/
* Dialectal data
| Variety | Location | edit核 |
| Mandarin | Beijing | /xɤ³⁵/ |
| Mandarin | Harbin | /xɤ²⁴/ |
| Mandarin | Tianjin | /xɤ⁴⁵/ ～算 /xu⁴⁵/ 棗～兒 |
| Mandarin | Jinan | /xə⁴²/ |
| Mandarin | Qingdao | /xɛ⁴²/ ～心 /xuə⁴²/ ～桃 |
| Mandarin | Zhengzhou | /xai⁴²/ |
| Mandarin | Xi'an | /xai²¹/ ～算 /xu²⁴/ 桃～儿 |
| Mandarin | Xining | /xɛ⁴⁴/ |
| Mandarin | Yinchuan | /xa¹³/ ～算 /xɛ¹³/ ～算 /xə¹³/ ～算 /xɯ¹³/ ～桃 |
| Mandarin | Lanzhou | /xə⁵³/ /xu⁵³/ |
| Mandarin | Ürümqi | /xɤ⁵¹/ /xu⁵¹/ |
| Mandarin | Wuhan | /xɤ²¹³/ |
| Mandarin | Chengdu | /xe³¹/ |
| Mandarin | Guiyang | /xɛ²¹/ |
| Mandarin | Kunming | /xə³¹/ |
| Mandarin | Nanjing | /xəʔ⁵/ |
| Mandarin | Hefei | /xɐʔ⁵/ |
| Jin | Taiyuan | /xəʔ²/ ～算 /kəʔ⁵⁴/ ～桃 |
| Jin | Pingyao | /kʌʔ⁵³/ ～桃 /kʰʌʔ¹³/ 審～ |
| Jin | Hohhot | /xaʔ⁴³/ ～算 /xu³¹/ 棗～子 |
| Wu | Shanghai | /ɦəʔ¹/ /ŋəʔ¹/ /ɦuəʔ¹/ |
| Wu | Suzhou | /ŋəʔ³/ |
| Wu | Hangzhou | /ɦɑʔ²/ |
| Wu | Wenzhou | /jy²¹³/ |
| Hui | Shexian | /xɛʔ²¹/ ～對 /xɛ²²/ 山～桃 |
| Hui | Tunxi | /xə¹¹/ /uən²⁴/ |
| Xiang | Changsha | /xə²⁴/ |
| Xiang | Xiangtan | /hæ²⁴/ |
| Gan | Nanchang | /hɛʔ²/ |
| Hakka | Meixian | /hak̚⁵/ |
| Hakka | Taoyuan | /het̚²²/ |
| Cantonese | Guangzhou | /hɐt̚²/ ～對 /wɐt̚²/ 桃～ |
| Cantonese | Nanning | /wɐt̚²²/ |
| Cantonese | Hong Kong | /hɐt̚²/ ～對 /wɐt̚²/ 桃～ |
| Min | Xiamen (Hokkien) | /hik̚⁵/ |
| Min | Fuzhou (Eastern Min) | /houʔ⁵/ |
| Min | Jian'ou (Northern Min) | /xo⁴⁴/ 名 /xɛ²⁴/ 動 |
| Min | Shantou (Teochew) | /hek̚²/ /huk̚⁵/ |
| Min | Haikou (Hainanese) | /hut̚⁵/ |
* Middle Chinese: heak
Rime :
| Character | 核 |
| Reading # | 1/1 |
| Initial (聲) | 匣 (33) |
| Final (韻) | 麥 (119) |
| Tone (調) | Checked (Ø) |
| Openness (開合) | Open |
| Division (等) | II |
| Fanqie | 下革切 |
| Baxter | heak |
| Reconstructions ||
| Zhengzhang Shangfang | /ɦˠɛk̚/ |
| Pan Wuyun | /ɦᵚæk̚/ |
| Shao Rongfen | /ɣɐk̚/ |
| Edwin Pulleyblank | /ɦəɨjk̚/ |
| Li Rong | /ɣɛk̚/ |
| Wang Li | /ɣæk̚/ |
| Bernhard Karlgren | /ɣæk̚/ |
| Expected Mandarin Reflex | hé |
| Expected Cantonese Reflex | hak$^6$ |
* Old Chinese
    (Baxter–Sagart): /*[ɡ]ˤ<r>ək/
    (Zhengzhang): /*ɡrɯːɡ/
Baxter–Sagart system 1.1 (2014) :
| Character | 核 |
| Reading # | 1/1 |
| Modern Beijing (Pinyin) | hé |
| Middle Chinese | ‹ hɛk › |
| Old Chinese | /*[ɡ]ˁ<r>ək/ |
| English | kernel fruit; scrutinize |
| Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "" indicate uncertain presence; * Square brackets "" indicate uncertain identity, e.g. *[t] as coda may in fact be *-t or *-p; * Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary. ||
Zhengzhang system (2003) :
| Character | 核 |
| Reading # | 2/2 |
| No. | 4843 |
| Phonetic component | 亥 |
| Rime group | 職 |
| Rime subdivision | 0 |
| Corresponding MC rime | 覈 |
| Old Chinese | /*ɡrɯːɡ/ |

##### Definitions

核
* to examine; to check; to verify
* rigorous; detailed; reliable

##### Usage notes

* In mainland China, 覈 (hé) is considered a variant form (異體字／异体字) of 核 that is simplified to 核.

#### Compounds

* 內核／内核 (nèihé)
* 剋核／克核
* 卵核
* 原子核 (yuánzǐhé)
* 反核 (fǎnhé)
* 地下核爆
* 地下核試／地下核试
* 基底核 (jīdǐhé)
* 察核
* 審核／审核 (shěnhé)
* 山核桃
* 杏核兒／杏核儿
* 果核
* 查核 (cháhé)
* 核仁 (hérén)
* 核備／核备
* 核傘／核伞
* 核准 (hézhǔn)
* 核分裂 (héfēnliè)
* 核力 (hélì)
* 核化學／核化学 (héhuàxué)
* 核半徑／核半径
* 核反應／核反应 (héfǎnyìng)
* 核反應器／核反应器
* 核可 (hékě)
* 核四
* 核型 (héxíng)
* 核塵／核尘
* 核子 (hézǐ)
* 核子作用
* 核子分裂
* 核子力
* 核子反應／核子反应
* 核子戰爭／核子战争 (hézǐ zhànzhēng)
* 核子戰略／核子战略
* 核子武器 (hézǐ wǔqì)
* 核子燃料
* 核子能
* 核子試爆／核子试爆
* 核子試驗／核子试验
* 核子醫學／核子医学
* 核子防護／核子防护
* 核定 (hédìng)
* 核實／核实 (héshí)
* 核對／核对 (héduì)
* 核廢料／核废料 (héfèiliào)
* 核彈頭／核弹头 (hédàntóu)
* 核心 (héxīn)
* 核心分子
* 核心區／核心区
* 核心家庭 (héxīn jiātíng)
* 核批
* 核果 (héguǒ)
* 核查 (héchá)
* 核桃
* 桃核雕
* 核武器 (héwǔqì)
* 核汙染／核污染
* 核派
* 核減／核减 (héjiǎn)
* 核潛艇／核潜艇 (héqiántǐng)
* 核燃料 (héránliào)
* 核爆 (hébào)
* 核物理學／核物理学 (héwùlǐxué)
* 核發／核发
* 核磁共振 (hécí gòngzhèn)
* 核示
* 核算 (hésuàn)
* 核糖核酸 (hétánghésuān)
* 核糖體／核糖体 (hétángtǐ)
* 核能 (hénéng)
* 核能廢料／核能废料
* 核能潛艇／核能潜艇
* 核能發電／核能发电
* 核能電廠／核能电厂
* 核膜 (hémó)
* 核苷 (hégān)
* 核苷酸 (hégānsuān)
* 核蛋白 (hédànbái)
* 核融合 (hérónghé)
* 核裝置／核装置
* 核覆
* 核計／核计 (héjì)
* 核辦／核办
* 核酸 (hésuān)
* 核銷／核销
* 核閱／核阅
* 核電／核电 (hédiàn)
* 核電廠／核电厂 (hédiànchǎng)
* 核黃疸／核黄疸
* 核黃素／核黄素 (héhuángsù)
* 棗核臉／枣核脸
* 殽核／淆核
* 海核 (Hǎihé)
* 無核／无核
* 煤核
* 熱核反應／热核反应
* 痔核
* 稽核 (jīhé)
* 簡核／简核
* 精核 (jīnghé)
* 細胞核／细胞核 (xìbāohé)
* 統核／统核
* 結核／结核 (jiéhé)
* 結核病／结核病 (jiéhébìng)
* 結核菌／结核菌
* 經濟核算／经济核算 (jīngjì hésuàn)
* 綜核／综核
* 綜核名實／综核名实
* 考核 (kǎohé)
* 肺結核／肺结核 (fèijiéhé)
* 腎結核／肾结核
* 腸結核／肠结核
* 菌核
* 複核／复核 (fùhé)
* 覆核 (fùhé)
* 賣李鑽核／卖李钻核
* 鑒核／鉴核 (jiànhé)
* 鑒核備查／鉴核备查
* 陰核／阴核 (yīnhé)
* 雙核都市／双核都市
* 非核武區／非核武区
* 骨結核／骨结核
* 麻核桃

### Etymology 2
#### Pronunciation

* Mandarin
    (Pinyin): gāi (gai$^1$)
    (Zhuyin): ㄍㄞ
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: gāi
*** Zhuyin: ㄍㄞ
*** Tongyong Pinyin: gai
*** Wade–Giles: kai$^1$
*** Yale: gāi
*** Gwoyeu Romatzyh: gai
*** Palladius: гай (gaj)
*** Sinological IPA : /kaɪ̯⁵⁵/

#### Definitions

核
* a kind of tree
* Alternative form of 荄 (gāi)

### Etymology 3
#### Pronunciation

* Mandarin
    (Pinyin): kài (kai$^4$)
    (Zhuyin): ㄎㄞˋ
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: kài
*** Zhuyin: ㄎㄞˋ
*** Tongyong Pinyin: kài
*** Wade–Giles: kʻai$^4$
*** Yale: kài
*** Gwoyeu Romatzyh: kay
*** Palladius: кай (kaj)
*** Sinological IPA : /kʰaɪ̯⁵¹/

#### Definitions

核
* eaves of a house

### References

* Dictionary of Chinese Character Variants (教育部異體字字典), A01911
* “核”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎, 香港中文大學 (the Chinese University of Hong Kong), 2014–

## Japanese
### Kanji

(Jōyō kanji)

#### Readings

* Go-on: ぎゃく (gyaku)
* Kan-on: かく (kaku, Jōyō)
* Kun: さね (sane, 核)

#### Compounds

* 核心(かくしん) (kakushin)
* 核開発(かくかいはつ) (kakukaihatsu): nuclear development
* 核拡散(かくかくさん) (kakukakusan): nuclear proliferation
* 核家族(かくかぞく) (kakukazoku): nuclear family
* 核攻撃(かくこうげき) (kakukōgeki): nuclear attack
* 核(かく)実(じっ)験(けん) (kakujikken): nuclear test
* 核戦争(かくせんそう) (kakusensō)
* 核燃料(かくねんりょう) (kakunenryō)
* 核分裂(かくぶんれつ) (kakubunretsu)
* 核(かく)兵(へい)器(き) (kakuheiki): nuclear weapon
* 核(かく　)エネルギー (kaku enerugī): nuclear energy
* 核(かく　)シェルター (kaku sherutā): nuclear bomb shelter
* 外核(がいかく) (gaikaku): (geology) outer core (of Earth)
* 中核(ちゅうかく) (chūkaku)
* 内核(ないかく) (naikaku): (geology) inner core (of Earth)
* 反核(はんかく) (hankaku): anti-nuclear
* 非核(ひかく) (hikaku): non-nuclear
* 原(げん)子(し)核(かく) (genshikaku): (physics) atomic nucleus
* 細(さい)胞(ぼう)核(かく) (saibōkaku): (biology) cell nucleus
* 尾(び)状(じょう)核(かく) (bijōkaku): (neuroanatomy) caudate nucleus
* 扁(へん)桃(とう)核(かく) (hentōkaku): (neuroanatomy) amygdala

### Etymology 1

* Kanji in this term
* 核
* かく Grade: S
* kan'on
From Middle Chinese 核 (MC heak).

#### Pronunciation

* (Tokyo) かく [káꜜkù] (Atamadaka –)
* (Tokyo) かく [kàkúꜜ] (Odaka – [2])
* IPA: [ka̠kɯ̟]

#### Noun

核(かく) • (kaku)
* atomic nucleus
* (algebra) kernel
* (astronomy) core, nucleus
* cell nucleus

#### Synonyms

* (atomic nucleus): 原(げん)子(し)核(かく) (genshikaku)
* (cell nucleus): 細(さい)胞(ぼう)核(かく) (saibōkaku)

### Etymology 2

* Kanji in this term
* 核
* さね Grade: S
* kun'yomi
For pronunciation and definitions of 核 – see the following entry. :
| 【実さね】3 | [noun] seed; stone; pit [noun] (archaic) core; root; essence [noun] (architecture) tongue (projecting part on a board meant to fit into a groove on another board, as in tongue and groove) [noun] (anatomy) clitoris [proper noun] a surname |
(This term, 核, is an alternative spelling of the above term.) :

### References

* 1 2 Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN

## Korean
### Hanja

核 • (haek, hol) (hangeul 핵, 홀, revised haek, hol, McCune–Reischauer haek, hol, Yale hayk, hol)
* (atomic) nucleus

## Vietnamese
### Han character

核: Hán Nôm readings: hạch
* This term needs a translation to English. Please help out and add a translation, then remove the text {{rfdef}}.

#### References

* Nom Foundation