a bed of cells that form the normal corneal epithelium.

(transitive) To put a plug or bung into something; to interrupt the flow of. / (transitive) To reinforce something weak.

Alternative form of drainplug

plural of plug hat

A screw-cutting tap with a slightly tapering end.

A rod attached to the beam for working the valves, as in the Cornish engine.

A tapering valve which turns in a case like the plug of a faucet.

A plug for stopping the mudhole of a boiler.

A device used to seal a subterranean well of hydrocarbons at a downhole location; may have removable features. Also known as a frac plug.

plural of yolk plug