noun Date: 1855 one who specializes in a particular occupation, practice, or branch of learning, an enlisted rank in the United States Army corresponding to the grade of corporal, an organism (as a bird) specialized especially in food or habitat, ~ or ~ic adjective
SPECIALIST
Meaning of SPECIALIST in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012