American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
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WordNet
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Our stout ship looked like a mere cockle-shell amid the mighty billows, which in huge watery walls rose half-way up the masts, threatening every instant to overwhelm her.— The Two Whalers Adventures in the Pacific
In person he was very large and fat--not unlike a cockle in shape: so round were his proportions, and so unwieldy, that it appeared much easier to roll him along from one place to another, than that he should walk.— Olla Podrida
The gigantic cockle was the only thing that presented.— Voyage of H.M.S. Pandora Despatched to Arrest the Mutineers of the 'Bounty' in the South Seas, 1790-1791
Some of the gigantic cockle was boiled, and cut into junks, lest any one should be inclined to eat.— Voyage of H.M.S. Pandora Despatched to Arrest the Mutineers of the 'Bounty' in the South Seas, 1790-1791
There was no Plimsoll mark in those days, and this cockle-shell of a vessel was literally loaded down to the scuppers.— The Shellback's Progress In the Nineteenth Century

American Heritage Dictionary (2)
Century Dictionary (6)
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