Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,909,783,816 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Lethal Dose

   Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Wikipedia 0.01 sec.
Lethal Dose 

a dose of any chemical or physical agent that brings about the death of a living organism.

Lethal doses are determined in animal experiments for various pharmacological agents, pesticides, and ionizing radiation. Lethal doses vary both with the properties of the agents and with the age, condition, and individual sensitivity of the organism. Therefore, lethal doses must be determined experimentally on a fairly representative number of animals. A distinction is made between minimum lethal dose, which is fatal only to the most sensitive individuals of a species (no more than 10 percent of the experimental animals); median lethal dose, which is fatal to half (LD50) the animals; and absolute lethal dose, which is the smallest amount that will cause the death of all of the experimental animals (LD100).



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
The doctor is charged with giving cancer-stricken Floyd a lethal dose of morphine.
During the Drug Prevention Unit's (YKAN) investigation of Theodorou's death, information was received that lead police to believe the young woman had supplied the lethal dose of heroin to the 22-year-old.
Lethal doses for sheep have been established at just 1-5 grams (10-25 grams for cattle, and 15-30 grams for horses).
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.