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A speed indicator; a tachometer.

The science or use of the tachymeter. -- Ta`chy*met"ric (#), a.

An early form of antimated-picture machine, devised in 1889 by Otto Anschütz of Berlin, in which the chronophotographs were mounted upon the periphery of a rotating wheel.

Done or made in silence; implied, but not expressed; silent; as, tacit consent is consent by silence, or by not interposing an objection. -- Tac"it*ly, adv. The tacit and secret theft of abusing our brother in civil contracts. Jer. Taylor.

Habitually silent; not given to converse; not apt to talk or speak. -- Tac"i*turn*ly, adv.

Habilual silence, or reserve in speaking. The cause of Addison's taciturnity was a natural diffidence in the company of strangers. V. Knox. The taciturnity and the short answers which gave so much offense. Macaulay.

A stain; a tache. [Obs.]

One who tacks.

A small, broad-headed nail. [Scot.] Jamieson.

See Tacky.

A union of securities given at different times, all of which must be redeemed before an intermediate purchaser can interpose his claim. Bouvier.

lowering heavy weights, consisting of a rope and pulley blocks; sometimes, the rope and attachments, as distinct from the block.

Made of ropes tacked together. My man shall be with thee, And bring thee cords made like a tackled stair. Shak.

Instruments of action; as, fishing tackling. Walton.

One who holds a tack or lease from another; a tenant, or lessee. Sir W. Scott. The tacksmen, who formed what may be called the "peerage" of the little community, must be the captains. Macaulay.

Sticky; adhesive; raw; -- said of paint, varnish, etc., when not well dried. [U. S.]

Designating, or pertaining to, the series of rocks forming the Taconic mountains in Western New England. They were once supposed to be older than the Cambrian, but later proved to belong to the Lower Silurian and Cambrian.

The sense of touch; feeling. Did you suppose that I could not make myself sensible to tact as well as sight Southey. Now, sight is a very refined tact. J. Le Conte.

ble of being touched; tangible. [R.] "They [women] being created to be both tractable and tactable." Massinger.

Full of tact; characterized by a discerning sense of what is right, proper, or judicious.