apothecaries' measure

apothecaries' measure

noun
a system of units used chiefly in compounding and dispensing liquid drugs. In the U.S. 60 minims (♍) = 1 fluid dram (f); 8 fluid drams = 1 fluid ounce (f); 16 fluid ounces = 1 pint (O.); 8 pints = 1 gallon (C.) (231 cubic inches). In Great Britain 20 minims = 1 fluid scruple; 3 fluid scruples = 1 fluid dram; 8 fluid drams = 1 fluid ounce; 20 fluid ounces = 1 pint; 8 pints = 1 imperial gallon (277.42 cubic inches).

Origin:
1895–1900

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World English Dictionary
apothecaries' measure
 
n
a system of liquid volume measure used in pharmacy in which 60 minims equal 1 fluid drachm, 8 fluid drachms equal 1 fluid ounce, and 20 fluid ounces equal 1 pint

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

apothecaries' measure a·poth·e·car·ies' measure (ə-pŏth'ĭ-kěr'ēz)
n.
A system of liquid volume measure used in pharmacy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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