backswimmer

noun

back·​swim·​mer ˈbak-ˌswi-mər How to pronounce backswimmer (audio)
: an aquatic bug (family Notonectidae) that swims on its back

Examples of backswimmer in a Sentence

Recent Examples on the Web
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When given a choice between a silent male water strider and a mating pair with a tapping male, the backswimmer always headed towards the vibrating duo. Ed Yong, Discover Magazine, 10 Aug. 2010 Each vibration risks attracting the attention of a hungry predator, like a fish or backswimmer (above). Ed Yong, Discover Magazine, 10 Aug. 2010 The backswimmer menace is so potent that after a few minutes of tapping from the male, the female relents by opening her genital shield. Ed Yong, Discover Magazine, 10 Aug. 2010 But these aquatic water scavenger beetles do not swim like the backswimmer or the larvae. New York Times, 26 July 2021 The 0.01-inch-long water flea is able to change its body into a bigger (and thus more inedible) shape when threatened by a predator, like the tiny backswimmer, says Anne Estes, a microbiologist at the University of Maryland School of Medicine. National Geographic, 12 Nov. 2016

Word History

First Known Use

1807, in the meaning defined above

Time Traveler
The first known use of backswimmer was in 1807

Dictionary Entries Near backswimmer

Cite this Entry

“Backswimmer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/backswimmer. Accessed 23 Nov. 2024.

Kids Definition

backswimmer

noun
back·​swim·​mer -ˌswim-ər How to pronounce backswimmer (audio)
: any of a family of bugs that live in the water and swim on their backs
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