Căl'a-mŭs, n.

n.; pl. CĂL'A-MĪ. [Lat. calamus, reed, Gr. κάλαμος.]

1. (Bot.) The Indian cane, a plant of the palm family. It furnishes the common rattan canes, used as walking-sticks, and also, when split, for seating chairs.
2. (Bot.) A species of Acorus (A. calamus), commonly called calamus, or sweet flag. The root has a pungent, aromatic taste, and is used in medicine as a stomachic; the leaves have an aromatic odor, and were formerly used instead of rushes to strew on floors. London.
3. Any thing made of the stalk of reeds or reed-like plants, as a reed-pipe, a reed-pen. Andrews.

The resinous matter called in commerce dragon's-blood is the produce of the outer skin of the fruit of a species of Calamus (C. draco), a native of Sumatra and Borneo. Baird.