from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A drug, C19H24N2O2, that kills trematodes and tapeworms parasitic to humans, used especially in the treatment of schistosomiasis.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An anthelmintic effective against flatworms.
p(y)razi(ne), one of its components (from German Pyrazin, blend of Pyridin, pyridine and Azin, azine) + qu(inoline) + ant(h)el(mintic).(American Heritage® Dictionary of the English Language, Fourth Edition)