crown-of-thorns (kroun′əv-thôrnz)
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Tweet n. 1. a. A trailing or climbing spiny shrub (Euphorbia milii) native to Madagascar and cultivated as a houseplant, having showy flower clusters with usually red, petallike bracts. b. The Christ's thorn. 2. A spiny starfish (Acanthaster planci) of the Pacific and Indian Oceans that feeds on coral polyps. |
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