active principle

n.

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

QUIZZES

CAN YOU FEEL THE WEAL WITH THIS WORD OF THE DAY QUIZ?

Did you collect all of last week’s words, but eftsoons forget what they mean? Don’t worry, we’re here to jog your memory. See how many words from the week of May 18 to 24 you can get right!
Question 1 of 7
weal
well-being, prosperity, or happiness.
the intervening time.
a somewhat prolonged, sharp, shrill cry, as of pain, fear, or surprise.
TAKE THE QUIZ TO FIND OUT

Words nearby active principle

artigas, artillery, artillery plant, artilleryman, artio-, active principle, artisan, artisanal, artist, artiste, artistic
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.