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definitions

active principle

n.

A constituent of a drug, usually an alkaloid or glycoside, on which the characteristic therapeutic action of the substance largely depends.

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Nearby words

  1. artillerist,
  2. artillery,
  3. artillery plant,
  4. artilleryman,
  5. artio-,
  6. artisan,
  7. artisanal,
  8. artist,
  9. artiste,
  10. artistic
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.