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1. coming after the second and preceding the fourth in numbering or counting order, position, time, etc.; being the ordinal number of three: often written 3rd
2. denoting the third from lowest forward ratio of a gearbox in a motor vehicle
a. one of three equal or nearly equal parts of an object, quantity, etc.
b. (as modifier): a third part
4. the fraction equal to one divided by three (1/3)
5. the forward ratio above second of a gearbox in a motor vehicle. In some vehicles it is the top gear
a. the interval between one note and another three notes away from it counting inclusively along the diatonic scale
b. one of two notes constituting such an interval in relation to the other
7. Brit an honours degree of the third and usually the lowest class
8. goods of a standard lower than that of seconds



a unit of time equal to 1/60 of a second. The unit is seldom used. In modern physics, small intervals of time are usually expressed in decimal fractions of a second: milliseconds (10–3sec), microseconds (10–6sec), and nanoseconds (10–9 sec).

References in periodicals archive ?
But I hope that this essay provides insight into the etude's large-scale rhythmic, dynamic, and registral shape, as well as the frequent use of sentences, the combinations of minor thirds, and the interplay of short-long rhythmic motifs.
12-15, the measures work upward chromatically, overlapping each other and forming a central axis around b, a minor third below and above.
In Rands's case, the coherence seems to be strengthened further by the fact that the two symmetrical referential patterns in Example 21 are similar to one another; they both alternate half-steps and minor thirds, but Structure I starts with the minor third as it grows outward from B and Structure II with the half-step.
The main clues to the central role of E in this line are repetition and the retention of the upper minor third and lower whole step diminutions that had helped to tonicize F in the previous lines.
While major and minor thirds dominate "dominic has," the tritone is the governing interval in "at just 5a.
29 the opening interval of a descending half step remains, but Ovens replaces the minor third of the initial statement of the unifying figure with a diminished fourth that the listener hears as the major third that was used in m.
Example 2 here is similar to Balzano's Figure 5; each point of the array consists of p major thirds (the x-coordinate) plus q minor thirds (the y-coordinate).
Since this is the precise width of the (tempered) minor third in the twelve-tone system, this seems reasonable.
With regard to consonances t]he major third, then is that which contains two whole tones, the minor third is that which contains a whole tone with a semitone.