A quill; the hard, horny, hollow, and more or less transparent part of the stem or scape of a feather.
Synonym of fistula (“tube for sucking Eucharist wine”)
A palm in genus Calamus, of rattan palms.
The sweet flag, Acorus calamus.
A fish of genus Calamus in family Sparidae; certain porgies.
The central shaft of a feather.
The main shaft of either a compound leaf, head of grain, or fern frond.
An anatomical shaft or axis in a marine invertebrate.