Search Result for "main yard":
Wordnet 3.0

NOUN (1)

1. yard for a square mainsail; 



The Collaborative International Dictionary of English v.0.48:

Main yard \Main" yard`\ (Naut.)
   The yard on which the mainsail is extended, supported by the
   mainmast.
   [1913 Webster]


WordNet (r) 3.0 (2006):

main yard
    n 1: yard for a square mainsail