citrus　英['sɪtrəs]美['sɪtrəs]　n.　[园艺]　柑橘属果树;柑橘类的植物　adj.　柑橘属植物的　使用频率:　星级词汇:　中文词源　来自拉丁语citrus,橘树,柠檬树。进一步词源不详,可能来自cedar,雪松。　英语词源　citrus:　[19]　Latin　citrus　signified　the　‘citron’,　a　tree　(　Citrus　medica　)　of　Asian　origin　with　a　lemon-like　fruit　which　was　the　earliest　of　the　citrus　fruits　to　become　known　in　the　West.　Like　the　fruit　itself,　the　name　is　presumably　of　Eastern　origin　–　perhaps　from　a　non-Indo-　European　language　from　around　the　eastern　end　of　the　Himalayas.　Citron　is　a　French　derivative　of　citrus　,　coined　on　the　model　of　French　limon　‘lemon’;　it　was　borrowed　into　English　in　the　16th　century.　1825,　from　Modern　Latin　genus　name,　from　Latin　citrus　"citron　tree,"　name　of　an　African　tree　with　aromatic　wood　and　lemon-like　fruit,　the　first　citrus　fruit　to　become　available　in　the　West.　The　name,　like　the　tree,　is　probably　of　Asiatic　origin　[OED].　But　Klein　traces　it　to　Greek　kedros　"cedar,"　and　writes　that　the　change　of　dr　into　tr　shows　that　the　word　came　from　Greek　into　Latin　through　the