test tube

test tube

noun
a hollow cylinder of thin glass with one end closed, used in chemical and biological experimentation and analysis.

Origin:
1840–50

Dictionary.com Unabridged

test-tube

[test-toob, -tyoob]
adjective
produced in or as if in a test tube; synthetic or experimental.

Origin:
1885–90

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
test tube
 
n
1.  a cylindrical round-bottomed glass tube open at one end: used in scientific experiments
2.  (modifier) made synthetically in, or as if in, a test tube: a test-tube product

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

test tube n.
A clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation.

test-tube adj.

  1. Produced or cultivated in a test tube.

  2. Conceived by or developed from fertilization in laboratory apparatus or by artificial insemination.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
test tube   (těst)  Pronunciation Key 
A cylindrical tube of clear glass, usually open at one end and rounded at the other, used as a container for small amounts of a substance in laboratory tests and experiments.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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