boom vang

== English == === Alternative forms === boomvang === Noun === boom vang (plural boom vangs) (nautical) A line or piston system on a sailboat used to exert downward force on the boom and thus control the shape of the sail; a martingale. ==== Synonyms ==== (A line system on a sailboat to exert downward force on the boom): kicking strap ==== Translations ====