英语词汇“chiasma”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

chi·as·ma

(kī-ăzmə) also chi·asm (kīăz′əm)

n. pl. chi·as·ma·ta (-mə-tə) or chi·as·mas also chi·asms

1. Anatomy A crossing or intersection of two tracts, as of nerves or ligaments.

2. Genetics The point of contact between paired chromatids during meiosis, resulting in a cross-shaped configuration and representing the cytological manifestation of crossing over.

[Greek khīasma, cross-piece, from khīazein, to mark with an X, from khei, khī, chi (from the letter's shape).]

chi·asmal, chi·asmic, chi′as·matic (-mătĭk) adj.

单词	chiasma
释义	chi·as·ma (kī-ăzmə) also chi·asm (kīăz′əm) n. pl. chi·as·ma·ta (-mə-tə) or chi·as·mas also chi·asms 1. Anatomy A crossing or intersection of two tracts, as of nerves or ligaments. 2. Genetics The point of contact between paired chromatids during meiosis, resulting in a cross-shaped configuration and representing the cytological manifestation of crossing over. [Greek khīasma, cross-piece, from khīazein, to mark with an X, from khei, khī, chi (from the letter's shape).] chi·asmal, chi·asmic, chi′as·matic (-mătĭk) adj.
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