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Meaning of knighthead

knight•head

Pronunciation: (nīt'hed"), [key]
— n. Naut.
  1. either of a pair of upright members flanking and securing the bowsprit of a ship at the bow, often used as mooring bitts; apostle.
  2. a plate at the fore end of a topgallant forecastle, on an iron or steel sailing ship, through which a spike bowsprit passes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.