The Collaborative International Dictionary
Cockle \Coc"kle\ (k[o^]k"k'l), n. [OE. cockes cockles, AS. s[=ae]coccas sea cockles, prob, from Celtic; cf. W. cocs cockles, Gael. cochull husk. Perh. influenced by F. coquille shell, a dim. from the root of E. conch. Cf. Coach.]
(Zo["o]l.) A bivalve mollusk, with radiating ribs, of the genus Cardium, especially Cardium edule, used in Europe for food; -- sometimes applied to similar shells of other genera.
A cockleshell.
The mineral black tourmaline or schorl; -- so called by the Cornish miners.
--Raymond.The fire chamber of a furnace. [Eng.]
--Knight.A hop-drying kiln; an oast.
--Knight.-
The dome of a heating furnace.
--Knight.Cockle hat, a hat ornamented with a cockleshell, the badge of a pilgrim.
--Shak.Cockle stairs, winding or spiral stairs.