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

单词	chiasma
释义	chiasma noun chi·as·ma kī-ˈaz-mə kē- plural chiasmata kī-ˈaz-mə-tə kē- 1 : an anatomical intersection or decussation compare optic chiasma 2 : a cross-shaped configuration of paired chromatids visible in the diplotene stage of meiotic prophase and considered the cytological equivalent of genetic crossing-over chiasmatic ˌkī-əz-ˈma-tik ˌkē- adjective Word History Etymology New Latin, X-shaped configuration, from Greek, crosspiece, from chiazein to mark with a chi, from chi (x) First Known Use 1839, in the meaning defined at sense 1 Phrases Containing chiasma optic chiasma optic chiasma Medical Definition chiasma noun chi·as·ma kī-ˈaz-mə, kē- plural chiasmata -mət-ə 1 : an anatomical intersection or decussation see optic chiasma 2 : a cross-shaped configuration of paired chromatids visible in the diplotene of meiotic prophase and considered the cytological equivalent of genetic crossing-over
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chiasma