1. [syn: peg, pin, thole, tholepin, rowlock, oarlock]
The Collaborative International Dictionary of English v.0.48:
Oarlock \Oar"lock`\ ([=o]r"l[o^]k`), n. (Naut.),
The notch, fork, or other device on the gunwale of a boat, in
which the oar rests, and that holds the oar in place and acts
as a fulcrum for rowing. Certain oarlocks are designed for
use with oars having attached swivels, which insert into the
oarlock and provide a firm pivot. Same as Rowlock.
Syn: peg, pin, thole, tholepin, rowlock.
[1913 Webster + WordNet 1.5 +PJC]