whirligig
whirl·i·gig / ˈ(h)wərlēˌgig/ • n. 1. a toy that spins around, for example a top or windmill. ∎ another term for merry-go-round. 2. [in sing.] a thing regarded as hectic or constantly changing: the whirligig of time. 3. (also whirligig beetle) a small black predatory beetle (Gyrinus and other genera, family Gyrinidae) that swims rapidly in circles on the surface of still or slow-moving water and dives when alarmed.
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bulge
bulge / bəlj/ • n. a rounded swelling or protuberance that distorts a flat surface. ∎ [in sing.] inf. a temporary unusual increase in num…
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Whirligig beetle
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Whirligig beetle