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 flattened, web-like part of a feather, consisting of a series of barbs on either side of the shaft.
Any of several usually relatively thin, rigid, flat, or sometimes curved surfaces radially mounted along an axis, as a blade in a turbine or a sail on a windmill, that is turned by or used to turn a fluid.
A sight on a sextant or compass.
One of the metal guidance or stabilizing fins attached to the tail of a bomb or other missile.
A weather vane.