1. abnormally low level of potassium in the circulating blood leading to weakness and heart abnormalities; associated with adrenal tumors or starvation or taking diuretics;
WordNet (r) 3.0 (2006):
hypokalemia
n 1: abnormally low level of potassium in the circulating blood
leading to weakness and heart abnormalities; associated
with adrenal tumors or starvation or taking diuretics [ant:
hyperkalemia]