1. a knot used to fasten a line temporarily to a post or spar;
The Collaborative International Dictionary of English v.0.48:
Clove \Clove\, imp. of Cleave.
Clove hitch (Naut.) See under Hitch.
Clove hook (Naut.), an iron two-part hook, with jaws
overlapping, used in bending chain sheets to the clews of
sails; -- called also clip hook. --Knight.
WordNet (r) 3.0 (2006):
n 1: a knot used to fasten a line temporarily to a post or spar