bimatoprost

noun

bi·​mat·​o·​prost bi-ˈma-tə-ˌpräst 

: a prostaglandin analog C₂₅H₃₇NO₄ used topically to reduce elevated intraocular pressure (as in the treatment of open-angle glaucoma) and promote the growth of longer and thicker eyelashes

Note: Bimatoprost is marketed under the trademarks Latisse and Lumigan.