What do a.m. and p.m. stand for?


[am-pyool, -pool] /ˈæm pyul, -pul/
noun, Medicine/Medical
a sealed glass or plastic bulb containing solutions for hypodermic injection.
Origin of ampule
1175-1225; < French < Latin ampulla ampulla; replacing Middle English ampulle < Old French < Latin; replacing Old English ampella, ampulla < Latin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ampoule
  • The labels on each ampoule have five lines of printed information on them.
  • Fill the ampoule with a sample of water by snapping the ampoule's tip.
  • The ampoule contains a strongly acidic solution of uranium.
British Dictionary definitions for ampoule


/ˈæmpuːl; -pjuːl/
(med) a small glass vessel in which liquids for injection are hermetically sealed
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
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Word Origin and History for ampoule

"small bottle or flask," especially one used for holy liquids, c.1200, from Old French ampole, from Latin ampulla "small globular flask or bottle," of uncertain origin, perhaps a contracted form of amphora.

Online Etymology Dictionary, © 2010 Douglas Harper
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ampoule in Medicine

ampoule am·poule or am·pule or am·pul (ām'pōōl, -pyōōl)
A hermetically sealed vial, usually made of glass, that contains a sterile medicinal solution or a powder to be made into a solution for subcutaneous, intramuscular, or intravenous injection.

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