First Known Use: circa 1826
Dictionary
rostellum
noun ros·tel·lum \rä-ˈste-ləm\
Definition of ROSTELLUM
: a small process resembling a beak : a diminutive rostrum: as a : an extension of the stigma of an orchid flower b : an anterior prolongation of the head of a tapeworm bearing hooks
— ros·tel·lar \rä-ˈste-lər\ adjective
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Origin of ROSTELLUM
New Latin, from Latin, diminutive of rostrum beak
Medical Dictionary
rostellum
noun ros·tel·lum \rä-ˈstel-əm\
Medical Definition of ROSTELLUM
: an anterior prolongation of the head of a tapeworm often bearing hooks
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