- a brace leading to a main yard.
Origin of main brace
First recorded in 1480–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for main brace
He then ordered the purser's steward to splice the main-brace.
He then gave us a glass of grog all round, and made his own crew splice the main-brace.
Thompson,” said I, “let go the main-sheet and the main-brace.Frank Mildmay
Captain Frederick Marryat
Then he saw the sick men, after which he gave orders to splice the main-brace.As We Sweep Through The Deep
If you don't splice the main-brace, you'll not make a knot an hour.The Sketches of Seymour (Illustrated), Part 5.