from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A drug that halts or reverses memory loss temporarily in some individuals with Alzheimer's disease, but does not alter the course of the disease.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A parasympathomimetic anticholinesterase, one of the first approved for the treatment of Alzheimer's disease.
t(etrahydro)- (tetra- + hydro-) + acr(id)ine.(American Heritage® Dictionary of the English Language, Fourth Edition)