Gasket

n.	1.	(Naut.) A line or band used to lash a furled sail securely. Sea gaskets are common lines; harbor gaskets are plaited and decorated lines or bands. Called also casket.
	2.	(Mech.) The plaited hemp used for packing a piston, as of the steam engine and its pumps.

Noun

1.

gasket - seal consisting of a ring for packing pistons or sealing a pipe joint

air hole, armhole, blowhole, bullet-hole, bunghole, cringle, deadeye, eye, eyelet, gland, grommet, guide, keyhole, knothole, loop, loophole, manhole, mousehole, packing, padding, peephole, pigeonhole, pinhole, placket, placket hole, porthole, punch-hole, spiracle, stopping, stuffing, tampon, tap, vent, venthole, wadding