waterglass

water glass

noun
1.
a drinking glass; tumbler.
2.
a glass container for holding water, as for growing bulbs, plants, or the like.
3.
a glass tube used to indicate water level, as in a boiler.
4.
a device for observing objects beneath the surface of the water, consisting essentially of an open tube or box with a glass bottom.
Also, waterglass.


Origin:
1600–10

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
water glass
 
n
1.  a viscous syrupy solution of sodium silicate in water: used as a protective coating for cement and a preservative, esp for eggs
2.  water clock another name for water gauge

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

water glass n.
See soluble glass.

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