WordReference Random House Unabridged Dictionary of American English © 2026
pro•la•tion
(prō lā′shən),USA pronunciation n. Medieval Music.
- Music and Dancethe time relationship between a semibreve and a minim in mensural notation.
- Latin prōlātiōn- (stem of prōlātiō) a bringing forward. See prolate, -ion
- Middle English prolacion 1325–75