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  1. Usually mouthparts. the appendages surrounding or associated with the mouth of arthropods.

Origin of mouthpart

First recorded in 1790–1800; mouth + part
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for mouthpart


  1. any of the paired appendages in arthropods that surround the mouth and are specialized for feeding
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mouthpart in Science


  1. Any of the parts of the mouth of an insect or other arthropod, especially a part or organ used for a specific way of feeding.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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