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ED50

Pharmacology.

effective dose for 50 percent of the group; the amount of a drug that is therapeutic in 50 percent of the persons or animals in which it is tested.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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American Heritage

Abbreviations & Acronyms

ED50
median effective dose

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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