Definition of longline:
(n) :
(fishing) Gear consisting of a long and thick mainline, with baited hooks attached at intervals by means of branch lines called snoods or gangions.
(v) :
To fish with a line of this kind.
(adj) :
(clothing) longer than usual; especially reaching to the hips
(n) :
(firefighting) A long cable used to raise or lower loads from a helicopter when landing is not possible.
(n) :
A slackline which runs a considerable distance