truth serum

truth serum definition - medical

truth serum (tro͞oth)

noun
Any of various hypnotic or anesthetic drugs, such as scopolamine or thiopental sodium, used to induce a subject under questioning to talk without inhibition.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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