'Ligan' definitions:

Definition of 'ligan'

From: WordNet
noun
Goods (or wreckage) on the sea bed that is attached to a buoy so that it can be recovered [syn: lagan, lagend, ligan]

Definition of 'Ligan'

From: GCIDE
  • Ligan \Li"gan\ (l[imac]"gan), n. [Cf. L. ligare to bind, to tie, ligamen band, bandage, E. ligament, or ligsam.] (Law) Goods sunk in the sea, with a buoy attached in order that they may be found again. See Jetsam and Flotsam. [Written also lagan.] --Blackstone. [1913 Webster]