an aroid marsh plant, Acorus calamus, having swordlike leaves, small greenish flowers, and aromatic roots
Also called: calamus
WordReference Random House Unabridged Dictionary of American English © 2026
sweet′ flag′,
- Plant Biologya plant, Acorus calamus, of the arum family, having long, sword-shaped leaves and a pungent, aromatic rootstock. Also called sweet calamus.
- 1775–85
Collins Concise English Dictionary © HarperCollins Publishers::
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