Unicorn root Meaning, Definition & Usage
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noun any of several perennials of the genus Aletris having grasslike leaves and bitter roots reputed to cure colic
colic root; star grass; crow corn; colicroot.
WordNet
Definitions
(Bot.) , a name of two North American plants, the yellow-flowered colicroot (Aletris farinosa ) and the blazing star (Chamælirium luteum ). Both are used in medicine.