Main topgallant - definition of main topgallant by The Free Dictionary
A sail or yard set from the topgallant section of a mainmast.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive
RIGGERS have removed the main topgallant mast from Nelson's flagship HMS Victory as part of major renovation works.
Riggers remove the main topgallant mast from Nelson''s flagship HMS Victory at Portsmouth''s Historic Dockyard
Suddenly there was a terrifying noise as the main topgallant
mast came crashing down.