back-swimmer
ər noun
any of numerous predaceous aquatic hemipterous insects, of the family Notonectidae, that swim on their backs, and may inflict a painful bite if handled.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To back-swimmer
WordNet
| backswimmer | |
noun | |
| predaceous aquatic insect that swims on its back and may inflict painful bites |
WordNet® 3.0, © 2006 by Princeton University.
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00:10
Back-swimmer
is always a great word to know.
So is quincunx. Does it mean:
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
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