test tube


noun

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

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Origin of test tube

First recorded in 1840–50

Definition for test tube (2 of 2)

test-tube
[ test-toob, -tyoob ]
/ ˈtɛstˌtub, -ˌtyub /

adjective

produced in or as if in a test tube; synthetic or experimental.

Origin of test-tube

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for test tube

British Dictionary definitions for test tube

test tube

noun

a cylindrical round-bottomed glass tube open at one end: used in scientific experiments
(modifier) made synthetically in, or as if in, a test tubea test-tube product
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

Medical definitions for test tube (1 of 2)

test tube

n.

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

Medical definitions for test tube (2 of 2)

test-tube

adj.

Produced or cultivated in a test tube.
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.

Scientific definitions for test tube

test tube
[ tĕst ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.