柯林斯詞典X chromosome (X chromosomes) 1. N-COUNT An X chromosome is one of an identical pair of chromosomes found in a woman's cells, or one of a nonidentical pair found in a man's cells. X chromosomes are associated with female characteristics. Compare . X染色躰; 與人躰女性性征相關(guān)聯(lián) 返回 X chromosome