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Meaning of mainmast

main•mast

Pronunciation: (mān'mast", -mäst"Naut.mān'm&schwast), [key]
— n. Naut.
  1. the second mast from forward in any ship having two or more masts, except for a yawl, ketch, or dandy. See illus. under
  2. the larger forward mast of a yawl, ketch, or dandy.
  3. the sole mast of any of various ships, as sloops or cutters.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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