rostellum (suomeksi)

Määritelmät:

A small beak-like process or extension; a small rostrum.
(lb, en, botany) A projecting part of the column in the flower of an orchid that separates the male stamen from the female gynoecium.
(lb, en, biology) A retractable protruding part at the anterior end of a soft-bodied tapeworm; the scolex from which it protrudes is often armed with hooks which serve to keep it in place attached to the host.