Dictionary.com
definitions
  • synonyms

lethal dose

noun
  1. the amount of a drug or other agent that if administered to an animal or human will prove fatalAbbreviation: LD See also median lethal dose (def. 1)
Show More
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

lethal dose in Medicine

lethal dose

n.
  1. The dose of a chemical or biological preparation that is likely to cause death.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.