細さい胞ぼう口こうMeanings1nouncytostome; cell mouthbiologyA specialized term in biology referring to a mouth-like opening in certain single-celled organisms, used for ingesting food.ゾウリムシは細さい胞ぼう口こうから餌えさを取とり込こむ。Paramecia take in food through their cytostome.