WordReference Random House Unabridged Dictionary of American English © 2026pla•gal
(plā′gəl),USA pronunciation adj. [Music.]
- Music and Dance(of a Gregorian mode) having the final in the middle of the compass. Cf. authentic (def. 5a).
- Medieval Latin plagālis, equivalent. to plag(a) plagal mode (apparently back formation from plagius plagal; see plage) + -ālis -al1
- 1590–1600
Collins Concise English Dictionary © HarperCollins Publishers::
plagal /ˈpleɪɡəl/ adj - (of a cadence) progressing from the subdominant to the tonic chord, as in the Amen of a hymn
- (of a mode) commencing upon the dominant of an authentic mode, but sharing the same final as the authentic mode. Plagal modes are designated by the prefix Hypo- before the name of their authentic counterparts
Compare authenticEtymology: 16th Century: from Medieval Latin plagālis, from plaga, perhaps from Greek plagos side
'plagal' also found in these entries (note: many are not synonyms or translations):