TIER n.
A row or rank, especially one of two or more rows placed one above, or higher than, another; as, a tier of seats in a theater. Tiers of a cable, the ranges of fakes, or windings, of a cable, laid one within another when coiled.
TILDE n.
The accentual mark placed over n, and sometimes over l, in Spanish words [thus, ñ, l], indicating that, in pronunciation, the sound of the following vowel is to be preceded by that of the initial, or consonantal, y.
TIME SIGNATURE n.
A sign at the beginning of a composition or movement, placed after the key signature, to indicate its time or meter. Also called rhythmical signature. It is in the form of a fraction, of which the denominator indicates the kind of note taken as time unit for the beat, and the numerator, the number of these to the measu…
TRACTOR SCREW; TRACTOR PROPELLER n.
A propeller screw placed in front of the supporting planes of an aëroplane instead of behind them, so that it exerts a pull instead of a push. Hence, Tractor monoplane, Tractor biplane, etc.