from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See romaine.
  • abbr. cosine

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • conj. because
  • n. a symbol of the trigonometric function cosine.
  • n. A variety of lettuce with long, crisp leaves.

from The Century Dictionary and Cyclopedia

  • n. See coss.
  • n. An abbreviation of cosine.
  • n. A kind of lettuce, suited for being grown out of doors in summer, usually forming long heads or rosettes.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. ratio of the adjacent side to the hypotenuse of a right-angled triangle
  • n. lettuce with long dark-green leaves in a loosely packed elongated head


After Cos (Kos).
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the name of the island Cos, whence it was introduced. (Wiktionary)
From 'cause, an aphetic form of because. (Wiktionary)


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  • 'cause, because

    December 4, 2006