noun Etymology: New Latin, from tetra- + Greek hymēn membrane Date: 1962 any of a genus ( Tetrahymena ) of ciliate protozoans
TETRAHYMENA
Meaning of TETRAHYMENA in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012