isorhythmic
Adjective
Meaning
(music) Pertaining to or using isorhythm.
(prosody) In ancient prosody, equal in the number of times for thesis and arsis, as a dactyl and anapest.
Source: en.wiktionary.orgExamples
Increasingly in the 14th and 15th centuries, motets tended to be isorhythmic ; that is, they employed repeated rhythmic patterns in all voices not only the cantus firmus which did not necessarily coincide with repeating melodic patterns.
This tended to obscure the rhythm supplied by the cantus firmus that had been apparent in the medieval isorhythmic motet.