Y chro ‧ mo ‧ some /ˈwaɪ ˌkrəʊməsəʊm $ -ˌkroʊməsoʊm/ BrE AmE noun [countable]
the part of a ↑ gene that makes someone a male instead of a female ⇨ X chromosome
Y chro ‧ mo ‧ some /ˈwaɪ ˌkrəʊməsəʊm $ -ˌkroʊməsoʊm/ BrE AmE noun [countable]
the part of a ↑ gene that makes someone a male instead of a female ⇨ X chromosome
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012