topmast

[top-mast, -mahst; Nautical top-muh st]
noun Nautical.
  1. the mast next above a lower mast, usually formed as a separate spar from the lower mast and used to support the yards or rigging of a topsail or topsails.

Origin of topmast

First recorded in 1475–85; top1 + mast1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of topmast


British Dictionary definitions for topmast

topmast

noun
  1. the mast next above a lower mast on a sailing vessel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012