Last Updated
：2025/11/20
water beetle
Noun
Japanese Meaning
淡水に生息する水生甲虫。楕円形で滑らかな体を持ち、泳ぎに適応した平らな後脚が特徴で、腹部の下に空気の泡を保持している。
（ plural ）
Quizzes for review
Any of various freshwater aquatic beetles that have a smooth oval body and flattened hind legs adapted for swimming, and that carry an air bubble underneath their abdomens.
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water beetle
At dusk, I watched a water beetle carry an air bubble beneath its abdomen as it swam across the pond.
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At dusk, I watched a water beetle carry an air bubble beneath its abdomen as it swam across the pond.
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