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TeachMeFinance.com - explain LD50- lethal dose - LC50-lethal concentration LD50- lethal dose - LC50-lethal concentration The term 'LD50- lethal dose - LC50-lethal concentration' as it applies to the area of agriculture can be defined as ' The dose (median concentration) of a toxicant that will kill 50% of the test animals within a designated period. The lower the LC50, the more toxic the compound. Testing to determine lethal dosages is used to characterize the acute toxicity of pesticides and other toxic chemicals'. Previous 5 Terms: Layered Haze lb LCD (Local Climatological Data) LCD TV LCL Next 5 Terms: LDCs LDP LDS LDT Le Chatelier's principle About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.