timolol
noun
ti·mo·lol ˈtī-mə-ˌlōl 
-ˌlȯl
: a beta-blocker C13H24N4O3S used in the form of its maleate salt to treat glaucoma and hypertension and to reduce the risk of second heart attacks
Word History
Etymology
tim- (of unknown origin) + -olol (as in propranolol)
First Known Use
1973, in the meaning defined above
Medical Definition
timolol
noun
ti·mo·lol ˈtī-mə-ˌlōl -ˌlȯl
-ˌlȯl : a beta-blocker used especially in the form of its maleate C13H24N4O3S·C4H4O4 to treat hypertension, to reduce the risk of reinfarction, to prevent migraine headaches, and to lower intraocular pressure associated with open-angle glaucoma and ocular hypertension
Note: Trademarks for preparations containing timolol include Combigan and Timoptic.