longline noun 3adjective 1verb 1forms 3 noun3 •Gear consisting of a long and thick mainline, with baited hooks attached at intervals by means of branch lines called snoods or gangions. •A slackline which runs a considerable distance •A long cable used to raise or lower loads from a helicopter when landing is not possible. adjective1 •longer than usual; especially reaching to the hipsStrapless longline bra, with wired underbust and flexible boning, smooths womanly curves. — 1953 verb1 •To fish with a line of this kind.The Japanese, always on the prowl for something else to take out of the sea, have been longlining sharks for years, and eating them in a variety of ways. — 1983 formslonglined · longlining · longlines