| tapper | (n) a person who strikes a surface lightly and usually repeatedly, Example: finger tappers irritated her |
| tapper | (n) a worker who uses a tap to cut screw threads |
| tapper | (n) someone who wiretaps a telephone or telegraph wire, Syn. phone tapper, wiretapper |
| tappet | (n) a lever that is moved in order to tap something else |
| untapped | (adj) not subjected to tapping, Ant. tapped, Example: an untapped keg; an untapped sugar maple |
| untapped | (adj) not drawn upon or used; ; - G.R.Harrison, Example: untapped reserves of coal; the untapped stockrooms of our minds |
| open-end wrench | (n) a wrench having parallel jaws at fixed separation (often on both ends of the handle), Syn. tappet wrench |
| tap dancer | (n) a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes, Syn. tapper |
| tapster | (n) a tavern keeper who taps kegs or casks, Syn. tapper |
| Tappen | n. An obstruction, or indigestible mass, found in the intestine of bears and other animals during hibernation. [ 1913 Webster ] |
| Tapper | n. (Zool.) The lesser spotted woodpecker (Dendrocopus minor); -- called also tapperer, tabberer, little wood pie, barred woodpecker, wood tapper, hickwall, and pump borer. [ Prov. Eng. ] [ 1913 Webster ] |
| Tappester | n. [ See Tapster. ] A female tapster. [ Obs. ] Chaucer. [ 1913 Webster ] |
| Tappet | n. (Mach.) A lever or projection moved by some other piece, as a cam, or intended to tap or touch something else, with a view to produce change or regulate motion. G. Francis. [ 1913 Webster ]
Tappet motion, a valve motion worked by tappets from a reciprocating part, without an eccentric or cam, -- used in steam pumps, etc. [ 1913 Webster ]
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| Tappet rod | . (Mech.) A rod carrying a tappet or tappets, as one for closing the valves in a Cornish pumping engine. [ Webster 1913 Suppl. ] |
| Wire tapper | . One that taps, or cuts in on, telegraph wires and intercepts messages; hence (Slang), a swindler who pretends to tap wires or otherwise intercept advance telegraphic news for betting. -- Wire tapping. [ Webster 1913 Suppl. ] |
