noun (plural spirilla) Etymology: New Latin, from diminutive of Latin spira coil Date: circa 1875 any of a genus ( Spirillum ) of curved elongated motile bacteria having tufts of flagella at both poles
SPIRILLUM
Meaning of SPIRILLUM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012