[ nuh-lok-sohn, nal-uh k-sohn ]
/ nəˈlɒk soʊn, ˈnæl əkˌsoʊn /

noun Pharmacology.

a narcotic analgesic antagonist, C19H21NO4, used in the reversal of acute narcotic analgesic respiratory depression.

Origin of naloxone

1960–65; by shortening and rearrangement of dihydroxy-, morphinan-, and -one, components of its chemical name Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for naloxone

British Dictionary definitions for naloxone

/ (nəˈlɒksəʊn) /


a chemical substance that counteracts the effects of opiates by binding to opiate receptors on cells

Word Origin for naloxone

C20: from N-al (lylnor) ox (ymorph) one, the chemical name
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012