Douglas Harper's Etymology Dictionary
Wiktionary
polyrhythmic
a. (context music English) Having multiple, simultaneous rhythms
Usage examples of "polyrhythmic".
Tolito tossing Kook the seven-year-old about the car like a beanbag, and behind it all, clobbering polyrhythmic to the racketing of the shuttle, Jose on his tin drum, forearms and hands vibrating out beyond the persistence of vision, and a tireless smile across his teeth wide as the West Side.