'Demerol' definitions:

Definition of 'Demerol'

From: WordNet
noun
A synthetic narcotic drug (trade name Demerol) used to treat pain [syn: meperidine, meperidine hydrochloride, Demerol]

Definition of 'Demerol'

From: GCIDE
  • meperidine \meperidine\ n. A synthetic narcotic drug used as a sedative; Demerol is the trademark of a brand of meperidine.
  • Syn: meperidine hydrochloride, Demerol. [WordNet 1.5] Mephistophelean