rostellum
noun
ros·tel·lum
rä-ˈste-ləm
plural rostella
rä-ˈste-lə
: a small process resembling a beak : a diminutive rostrum: such as
a
: an extension of the stigma of an orchid flower
b
: an anterior prolongation of the head of a tapeworm bearing hooks
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Merriam-Webster unabridged
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