isorhythmic meaning

Meaning of isorhythmic

What is the full meaning of isorhythmic

in ancient prosody, equal in the number of time-units for thesis and arsis, as dactyl, spondee, anapaest; (in medieval motets) having a strict scheme of repeated rhythm independent of melodic repetition [adj]

Example of the word isorhythmic placed on a Scrabble board.