mouthpart

noun

mouth·​part ˈmau̇th-ˌpärt How to pronounce mouthpart (audio)
: a structure or appendage near the mouth (as of an insect) especially when adapted for use in gathering or eating food

Examples of mouthpart in a Sentence

Recent Examples on the Web The brown marmorated stink bug (BMSB) has piercing-sucking mouthparts with a straw-like stylet that sucks plant juices. oregonlive, 24 June 2023 Ticks attach themselves to the skin of their host, using specialized mouthparts to pierce the skin and feed on blood. Tiffany Acosta arizona Republic, The Arizona Republic, 23 June 2023 When ladybugs do bite, however, their mouthparts are not strong enough to break the skin. Olivia Munson, USA TODAY, 26 May 2023 The best Thermacell mosquito repellents are designed to keep those disease-carrying insects and their razor-sharp mouthparts far away. John Sass, Field & Stream, 11 Apr. 2023 The adults have vestigial mouthparts and cannot feed, and only live about a couple of weeks. Miri Talabac, Baltimore Sun, 6 Apr. 2023 The creature would inject a syringe-like mouthpart into a plant and suck up the juices. Carl Zimmer, Discover Magazine, 4 May 2010 During the feeding process, the female mosquito uses a mouthpart called the proboscis—which is also used to feed on flowers—to pierce the skin and feed on the blood. Eleesha Lockett, SELF, 8 June 2022 Mosquitoes, for instance, pierce the skin with their long, thin mouthparts, while certain biting flies boast serrated jaws that slash through flesh. Brigit Katz, Smithsonian, 2 Dec. 2019 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mouthpart.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1799, in the meaning defined above

Time Traveler
The first known use of mouthpart was in 1799

Dictionary Entries Near mouthpart

Cite this Entry

“Mouthpart.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mouthpart. Accessed 5 Mar. 2024.

Kids Definition

mouthpart

noun
mouth·​part ˈmau̇th-ˌpärt How to pronounce mouthpart (audio)
: a bodily structure that is near the mouth (as of an insect) especially when used to gather or eat food

Medical Definition

mouthpart

noun
mouth·​part ˈmau̇th-ˌpärt How to pronounce mouthpart (audio)
: a structure or appendage near the mouth especially of an insect
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