- Biology. any small, beaklike process.
- Botany. a beaklike modification of the stigma in many orchids.
- a projecting part of the scolex in certain tapeworms.
- a part of the mouth in many insects, designed for sucking.
Origin of rostellum
Examples from the Web for rostellum
Historical Examples of rostellum
Anthera fere immersa, Rostellum integrum ut in omnibus glandula orbotis Pollinia 8.
I want to know whether anything beats in modification the rostellum of Catasetum.
Asa Gray's observations on the rostellum of Gymnadenia are very imperfect, yet worth looking at.
One has a rostellum without hooks, like the tni of the vegetable-feeders, the other has hooks like those of the carnivora.Animal Parasites and Messmates
P. J. Van Beneden
So in other cases, but I have not completely traced (only seen) that going to the rostellum.
- biology a small beaklike process, such as the hooked projection from the top of the head in tapeworms or the outgrowth from the stigma of an orchid
Word Origin for rostellum
- A small beaklike part, such as the hooked projection on the head of a tapeworm.