- (in certain crustaceans and insects) an organ or part of the proboscis adapted for sucking blood or plant juices.
Origin of haustellum
1810–20; < New Latin, diminutive of Latin haustrum scoop on a water wheel, equivalent to haus-, variant stem of haurīre to scoop up, draw + -trum suffix of instrument; for formation, see castellum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for haustellum
Haustellum, haws-tel′um, n. the sucking organ or proboscis of an insect or a crustacean:—pl.
The Asili also, which are always upon the chase, seize insects with their anterior legs and suck them with their haustellum.An Introduction to Entomology: Vol. I (of 4)
- the tip of the proboscis of a housefly or similar insect, specialized for sucking food
C19: New Latin, diminutive of Latin haustrum device for drawing water, from haurīre to draw up; see exhaust