test tube

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test tube

1. a cylindrical round-bottomed glass tube open at one end: used in scientific experiments
2. made synthetically in, or as if in, a test tube
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Test Tube


a tube, usually made of glass, that is sealed at one end; a type of chemical laboratory vessel. Test tubes are used when working with small quantities of a substance.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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