rostellum meaning

Noun: rostellum

1. A small beaklike process; a small rostrum
   "the rostellum of the stigma of violets"

Derived forms: rostellums

[Medicine]
n : an anterior prolongation of the head of a tapeworm often bearing hooks

Examples

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1. The rostellum remains invaginated in the apex of the organ.
2. The stigma, separated by the rostellum.
3. The scolex bears a retractable rostellum armed with a single circle of 20 to 30 hooks.
4. In addition the protoscolex of rostellum, while that of " T . saginata " has only an apical pit.
5. Sometimes there is a small extension or little beak to the median stigma lobe, called "'rostellum " '.