— biorhythmic , adj. — biorhythmicity /buy'oh ridh mis"i tee/ , n. — biorhythmist, biorhythmicist , n.
/buy"oh ridh'euhm/ , n.
Physiol. an innate periodicity in an organism's physiological processes, as sleep and wake cycles.
[ 1960-65; BIO- + RHYTHM ]