noun Etymology: New Latin ostiolum, from Latin, diminutive of ostium Date: circa 1857 a small bodily aperture, orifice, or pore
OSTIOLE
Meaning of OSTIOLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012