lugsail

lug·sail  (lgsl)

n.

A quadrilateral sail that lacks a boom, has the foot larger than the head, and is bent to a yard hanging obliquely on the mast.

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[Possibly from lug¹.]

Thesaurus

Noun

1.

lugsail - a sail with four corners that is hoisted from a yard that is oblique to the mast lug fore-and-aft sail - any sail not set on a yard and whose normal position is in a fore-and-aft direction junk - any of various Chinese boats with a high poop and lugsails lugger - small fishing boat rigged with one or more lugsails