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Meaning of haustellum

haus•tel•lum

Pronunciation: (hô-stel'um), [key]
— pl. haus•tel•la
  1. (in certain crustaceans and insects) an organ or part of the proboscis adapted for sucking blood or plant juices.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.