Pharm.
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.
Pharm.
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.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012