median lethal time


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms.
Related to median lethal time: Median lethal dose

median lethal time

[′mē·dē·ən ′lēth·əl ‚tīm]
(microbiology)
The period of time required for 50% of a large group of organisms to die following a specific dose of an injurious agent, such as a drug or radiation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.