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WordReference Random House Unabridged Dictionary of American English © 2024bot•tle•brush (bot′l brush′),USA pronunciation n. [Bot.]- Plant Biologyany of various trees or shrubs of the myrtle family, esp. of the genera Callistemon and Melaleuca, native to Australia and adjacent areas, having spikes of flowers with numerous conspicuous stamens.
- 1705–15; bottle1 + brush1; so called from the resemblance of the flower spike to a brush used for cleaning bottles, with bristles on all sides of a central stem
Collins Concise English Dictionary © HarperCollins Publishers:: bottlebrush /ˈbɒtəlˌbrʌʃ/ n - a cylindrical brush on a thin shaft, used for cleaning bottles
Also called: callistemon any of various Australian myrtaceous shrubs or trees of the genera Callistemon and Melaleuca, having dense spikes of large red flowers with protruding brushlike stamens
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