Pro*la"tion (?), n. [L. prolatio: cf. F. prolation.]
1.
The act of prolating or pronouncing; utterance; pronunciation.
[Obs.]
Ray.
2.
The act of deferring; delay.
[Obs.]
Ainsworth.
3. Mus.
A mediaeval method of determining of the proportionate duration of semibreves and minims.
Busby.
© Webster 1913.