tacrine

tac·rine

noun \ˈtak-ˌrēn, -ˌrīn\

Definition of TACRINE

: an anticholinesterase that is administered in the form of its hydrochloride C₁₃H₁₄N₂·HCl and is used especially in the palliative treatment of cognitive deficits in learning, memory, and mood associated with Alzheimer's disease—called also tetrahydroaminoacridine, THA; see cognex