# radio-
## English
### Etymology

Latin radius (“ray”)

### Pronunciation

* Audio (US):(file)

### Prefix

radio-
* radiation, radioactive
    e.g. radiotherapy, radioactinium, radiolucent
* radio (broadcasting)
    e.g. radiotelemetry, radioacoustics, radiotelegraph
* (anatomy) radius (bone)
    e.g. radiobicipital
* (geometry) radius
    radiosymmetrical

#### Derived terms

* radioacoustics
* radioactinium
* radioactive
* radioactivity
* radioassay
* radiobicipital
* radiobioassay
* radiobiology
* radiobroadcast
* radiobromine
* radiocarbon
* radiocardiogram
* radiochemistry
* radiochromatography
* radiochronology
* radiocolloid
* radiocommunication
* radiodense
* radiodensity
* radiodermatitis
* radioecology
* radioelement
* radiogenic
* radiogeology
* radioglaciology
* radiogold
* radiogoniometer
* radiogoniometry
* radiogram
* radiograph
* radiography
* radiohalo
* radiohumeral
* radiohydrology
* radioimmunity
* radioimmunoassay
* radioimmunodiffusion
* radioimmunoelectrophoresis
* radioimmunology
* radioimmunoprecipitation
* radioimmunotherapy
* radioiodine
* radioisotope
* radiolabel
* radiolarian
* radiolarite
* radiole
* radiolesion
* radioli
* radioligand
* radiolite
* radiolitic
* radiolocation
* radiologic
* radiological
* radiologist
* radiology
* radiolucent
* radioluminescence
* radiolysis
* radioman
* radiometer
* radiometric
* radiometry
* radiomicrometer
* radiomimetic
* radiomutation
* radion
* radionecrosis
* radioneuritis
* radionics
* radionucleotide
* radionuclide
* radionuclide
* radiopacity
* radiopaque
* radiopasteurization
* radiopharmaceutical
* radiopharmacology
* radiophobia
* radiophone
* radiophony
* radiophoto
* radiophotograph
* radiophotoluminescence
* radioprotection
* radioreceptor
* radioresistance
* radioresistant
* radioscopy
* radiosensitive
* radiosonde
* radiosurgery
* radiotelegraph
* radiotelegraphy
* radiotelemetry
* radiotelephone
* radiotelephony
* radioteletype
* radioteletypewriter
* radiotherapy
* radiothorium
* radiotoxic
* radiotoxicity
* radiotracer
* radious
* radiovision

#### Translations
### References

* Definition of radi- - Merriam-Webster Online Dictionary

### Anagrams

* aroid, doira

## Catalan
### Prefix

radio-
* radio-

#### Derived terms
## Corsican
### Alternative forms

* radiu-

### Etymology

Ultimately from French radio-. Akin to Italian radio- and Spanish radio-.

### Pronunciation

* IPA: /radio-/

### Prefix

radio-
* radio-

#### Derived terms
## Dutch
### Pronunciation

* Audio:(file)

### Prefix

radio-
* radio-

#### Derived terms
## Finnish
### Etymology

Internationalism (see English radio-).

### Pronunciation

* IPA: /ˈrɑdio-/, [ˈrɑ̝dio̞-]

### Prefix

radio-
* radio- (radiation)

#### Derived terms

See also the compounds under radio.

## French
### Prefix

radio-
* radio-

#### Derived terms
## Hungarian
### Etymology

From Latin radius (“ray of light”).

### Pronunciation

* IPA: [ˈrɒdijo], [ˈraːdijoː]
* Hyphenation: ra‧dio

### Prefix

radio-
* radio-

#### Usage notes

The radio- prefix is written with short a and o in Hungarian compound words. However, it can be pronounced both short and long. The long pronunciation is influenced by the noun rádió.

#### Derived terms
### References

* ↑ Tótfalusi, István. Idegenszó-tár: Idegen szavak értelmező és etimológiai szótára (’A Storehouse of Foreign Words: an explanatory and etymological dictionary of foreign words’). Budapest: Tinta Könyvkiadó, 2005. →ISBN

## Italian
### Prefix

radio-
* radio- (all senses)

#### Derived terms
### Anagrams

* Adrio, Dario, Doria, adiro, adirò, adori, arido, dorai, rioda, rodai

## Polish
### Etymology

Learned borrowing from Latin radio-.

### Pronunciation

* IPA: /ra.djɔ/
* Audio:(file)
* Rhymes: -adjɔ
* Syllabification: [please specify syllabification manually]
* Homophone: radio

### Prefix

radio-
* radio-
    ‎radio- + ‎-grafia → ‎radiografia

#### Derived terms
### Further reading

* radio- in Polish dictionaries at PWN

## Portuguese
### Pronunciation

* (Brazil) IPA: /ˌʁa.d͡ʒi.o/ [ˌha.d͡ʒɪ.o], (faster pronunciation) /ˌʁa.d͡ʒjo/ [ˌha.d͡ʒjo]
* (Brazil) IPA: /ˌʁa.d͡ʒi.o/ [ˌha.d͡ʒɪ.o], (faster pronunciation) /ˌʁa.d͡ʒjo/ [ˌha.d͡ʒjo]
** (Rio de Janeiro) IPA: /ˌʁa.d͡ʒi.o/ [ˌχa.d͡ʒɪ.o], (faster pronunciation) /ˌʁa.d͡ʒjo/ [ˌχa.d͡ʒjo]
* (Portugal) IPA: /ˌʁa.djɔ/ [ˌʁa.ðjɔ]

### Prefix

radio-
* radio-

#### Derived terms
## Spanish
### Etymology

Borrowed from French radio-.

### Prefix

radio-
* radio-

#### Derived terms
### Further reading

* “radio-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), 23rd edition, Royal Spanish Academy, 2014 October 16