from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A bitter crystalline alkaloid, C17H19NO3·H2O, extracted from opium, the soluble salts of which are used in medicine as an analgesic, a light anesthetic, or a sedative. Also called morphia.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A crystalline alkaloid (7,8-didehydro-4,5-epoxy-17-methyl-morphinan-3,6-diol), extracted from opium, the salts of which are soluble in water and are used as analgesics, anaesthetics and sedatives; it is one of a group of morphine alkaloids.

from the GNU version of the Collaborative International Dictionary of English

  • n. A bitter white crystalline alkaloid found in opium, possessing strong narcotic properties, and much used as an anodyne; -- called also morphia, and morphina.

from The Century Dictionary and Cyclopedia

  • n. An alkaloid, C17H19N03, the most important narcotic principle of opium.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an alkaloid narcotic drug extracted from opium; a powerful, habit-forming narcotic used to relieve pain


French, from Morphée, Morpheus, from Latin Morpheus.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek Morpheus the god of dreams. (Wiktionary)



Log in or sign up to get involved in the conversation. It's quick and easy.

  • Holmes used this in addition to cocaine.

    March 27, 2013