色欲tv国产亚洲_久久午夜夜伦鲁鲁影院_一级特黄无码A片在线观看_免费黄色性感一级片_国内破女处破苞视频hd_欧美三级少妇免费_亚洲美腿丝袜福利一区_白丝秘书被躁到高潮视频av_91麻豆精品分享的内容是很丰富的_国产原创免费av网站

chiasma

英 [ka?'?zm?; k?-] 美
  • n. 交叉；視神經(jīng)交叉

詞態(tài)變化

復(fù)數(shù):?chiasmata;? chiasmas;

英文詞源

chiasma (n.)
"a crossing," 1832, medical Latin, from Greek khiasma "two things placed crosswise," which is related to khiasmos (see chiasmus). In cytology from 1911.