Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
media studies
media training
mediacy
mediae
mediaeval
mediagenic
medial
median
median lethal dose
median plane
median strip
mediant
mediastinum
mediate
mediatize
mediator
medic (1)
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

median lethal dose

me·di·an le·thal dose (plural me·di·an le·thal dos·es)


noun 
Definition:
 
dose killing half of experimental animals: the dose of a substance such as a drug or ionizing radiation that in a specific time period will kill half the experimental animals to whom it is given.
Symbol  LD50


Advertisement

© 2009 Microsoft