Faucet vs. Petcock

Faucetnoun

(North America) An exposed plumbing fitting; a tap or spigot; a regulator for controlling the flow of a liquid from a reservoir.

Petcocknoun

A small valve, spout, or faucet operated by hand, usually used to release pressure or drain fluid.

Faucetnoun

A fixture for drawing a liquid, as water, molasses, oil, etc., from a pipe, cask, or other vessel, in such quantities as may be desired; - called also tap, and cock. It consists of a tubular spout, stopped with a movable plug, spigot, valve, or slide.

Petcock

A petcock is a small shut-off valve used to control the flow of liquid or gas. Historically, petcocks were threaded valves controlled by a butterfly handle; modern petcocks are typically ball valves.

Faucetnoun

The enlarged end of a section of pipe which receives the spigot end of the next section.

Faucetnoun

a regulator for controlling the flow of a liquid from a reservoir