Definitions for "Yardarm"
The portion of a yard{6} outboard of the slings, often called the outer quarter.
"the outer ends of a yard." (Underhill)
Keywords:  rigged, mast, square, tapering, end
Either half of a square-rigged vessel's yard{6}, from the center or mast to the end.
The tapering end of a yard
either end of the yard of a square-rigged ship
Keywords:  extremities
The extremities of a yard.