the branch of pharmacology dealing with the determination of dosage.
Origin of posology
1805–15; < Greek póso(s) how much + -logy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the branch of medicine concerned with the determination of appropriate doses of drugs or agents
Word Origin for posology
C19: from French posologie, from Greek posos how much
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
The medical or pharmacological study of the dosages of medicines and drugs.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.