English Dictionary

osculum

noun

(chiefly zoology) A small opening or orifice. / (zoology, obsolete) One of the suckers on the head of a tapeworm. / (zoology) The main opening in a sponge from which water is expelled.

The osculum is the main opening in a sponge through which water is expelled.

意味（1）

(chiefly zoology) A small opening or orifice.

意味（2）

(zoology, obsolete) One of the suckers on the head of a tapeworm.

意味（3）

(zoology) The main opening in a sponge from which water is expelled.

Waste water was expelled through a single osculum at about 8.5 cm per second – more than eight thousand times as fast as it circulated in the chambers and 85 times as fast as it entered the sponge in the first place.