/kal"euh meuhs/ , n. , pl. calami /-muy'/ .
1. the sweet flag, Acorus calamus.
2. its aromatic root.
3. any of various tropical Asian palms of the genus Calamus, some of which are a source of rattan.
4. the hollow base of a feather; a quill. See illus. under feather .
[ 1350-1400; ME kálamos reed, stalk ]