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 aftershaft of a feather.
One of the featherlike scales of certain male butterflies.
The first bud, or growing point, of a plant embryo, situated above the cotyledons.
A down feather.