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The interval of a fourth.

octave of the first. Diatonic scale (Mus.), a scale consisting of eight sounds with seven intervals, of which two are semitones and five are whole tones; a modern major or minor scale, as distinguished from the chromatic scale.

A small interval, less than any in actual practice, but used in the mathematical calculation of intervals.

To make smaller by a half step; to make (an interval) less than minor; as, a diminished seventh.

An interval of two octaves, or a fifteenth; -- called also bisdiapason.

Relative space, between troops in ranks, measured from front to rear; -- contrasted with interval, which is measured from right to left. "Distance between companies in close column is twelve yards." Farrow.

e of double the length of the semibreve; a breve. See Breve. -- Double octave (Mus.), an interval composed of two octaves, or fifteen notes, in diatonic progression; a fifteenth. -- Double pica. See under Pica. -- Double play (Baseball), a play by which two players are put out at the same time. -- Double plea (Law)…

xious hour. Keble. Johnson entered on his vocation in the most dreary part of that dreary interval which separated two ages of prosperity. Macaulay.

suring the duration of sounds, and determining their different, and the relation of their intervals. J. J. Rousseau.

The interval of an octave.

Of or pertaining to the interval of the octave and the fourth.

Pertaining to a scale of perfect intonation which recognizes all the notes and intervals that result from the exact tuning of diatonic scales and their transposition into other keys.

The interval of time which occurs between the performance of any two acts of a drama.

falls suddenly to the ground; a disease characterized by paroxysms (or fits) occurring at interval and attended by sudden loss of consciousness, and convulsive motions of the muscles. Dunglison.

of time." F. Harrison. The influence of Chaucer continued to live even during the dreary interval which separates from one another two important epochs of our literary history. A. W. Ward.

uivocal chord (Mus.), a chord which can be resolved into several distinct keys; one whose intervals, being all minor thirds, do not clearly indicate its fundamental tone or root; the chord of the diminished triad, and the diminished seventh.

s of royalty, etc., by having the tips of the tails, which are black, arranged at regular intervals throughout the white.

tum on which the tides are computed at the given port, obtained by observation, viz., the interval between the moon's passage over the meridian and the time of high water at the port, on the days of new and full moon.

e. [Obs.] "Every each of them hath some vices." Burton.. -- Every now and then, at short intervals; occasionally; repeatedly; frequently. [Colloq.]

Extended or contracted as much as possible; -- said of intervals; as, an extreme sharp second; an extreme flat forth. Extreme and mean ratio (Geom.), the relation of a line and its segments when the line is so divided that the whole is to the greater segment is to the less. -- Extreme distance. (Paint.) See Distance.,…