The Collaborative International Dictionary of English v.0.48:

Cockle \Coc"kle\, v. t. [imp. & p. p. Cockled; p. pr. & vb. n.
   Cockling.] [Of uncertian origin.]
   To cause to contract into wrinkles or ridges, as some kinds
   of cloth after a wetting.
   [1913 Webster]

   Cockling sea, waves dashing against each other with a short
      and quick motion. --Ham. Nav. Encyc.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

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.]
   1. (Zool.) 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.
      [1913 Webster]

   2. A cockleshell.
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   3. The mineral black tourmaline or schorl; -- so called by
      the Cornish miners. --Raymond.
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   4. The fire chamber of a furnace. [Eng.] --Knight.
      [1913 Webster]

   5. A hop-drying kiln; an oast. --Knight.
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   6. The dome of a heating furnace. --Knight.
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   Cockle hat, a hat ornamented with a cockleshell, the badge
      of a pilgrim. --Shak.

   Cockle stairs, winding or spiral stairs.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cockle \Coc"kle\, n. [AS. coccel, cocel; cf. Gael. cogall tares,
   husks, cockle.] (Bot.)
   (a) A plant or weed that grows among grain; the corn rose
       (Luchnis Githage).
   (b) The Lotium, or darnel.
       [1913 Webster]

WordNet (r) 3.0 (2006):

cockle
    n 1: common edible European bivalve
    2: common edible, burrowing European bivalve mollusk that has a
       strong, rounded shell with radiating ribs
    v 1: stir up (water) so as to form ripples [syn: ripple,
         ruffle, riffle, cockle, undulate]
    2: to gather something into small wrinkles or folds; "She
       puckered her lips" [syn: pucker, rumple, cockle,
       crumple, knit]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "cockle":
   cocker, corrugate, crease, crimp, crimple, crinkle, crumple,
   dimple, fret, furrow, knit, knot, pucker, purse, ridge, rimple,
   ripple, ruck, ruckle, rumple, shirr, wimple, wrinkle



Easton's 1897 Bible Dictionary:

Cockle
   occurs only in Job 31:40 (marg., "noisome weeds"), where it is
   the rendering of a Hebrew word (b'oshah) which means
   "offensive," "having a bad smell," referring to some weed
   perhaps which has an unpleasant odour. Or it may be regarded as
   simply any noisome weed, such as the "tares" or darnel of Matt.
   13:30. In Isa. 5:2, 4 the plural form is rendered "wild grapes."