chlorothiazide: a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension
thiazide: any of a group of drugs commonly used as diuretics in the treatment of hypertension; they block the reabsorption of sodium in the kidneys
sycamore: Eurasian maple tree with pale grey bark that peels in flakes like that of a sycamore tree; leaves with five ovate lobes yellow in autumn