noun plural but singular in construction Date: 1905 a branch of biology that deals with the heredity and variation of organisms, the genetic makeup and phenomena of an organism, type, group, or condition, geneticist noun
GENETICS
Meaning of GENETICS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012