- produced in or as if in a test tube; synthetic or experimental.
Origin of test-tube
First recorded in 1885–90
- a hollow cylinder of thin glass with one end closed, used in chemical and biological experimentation and analysis.
Origin of test tube
First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for test-tube
It is a mega-leap from the agar and test-tube finding to real patients and their delicate lungs.Big Tobacco, Not MRSA, Is the Real Problem With E-Cigarettes
May 20, 2014
Scientists hope the five-ounce patty, made from 100 percent test-tube meat, heralds the future of food production.The $330,000 Fake Burger
August 5, 2013
From early dawn to midnight I bent over the test-tube and the furnace.The Captain of the Pole-Star and Other Tales
Arthur Conan Doyle
Pour off the water, add more water, and place in a test-tube.The Diatomaceae of Philadelphia and Vicinity
Charles Sumner Boyer
Place a few drops in a test-tube, and heat cautiously over a spirit-lamp, and when it boils remove, and inhale by the nose.
But it will be the test-tube and not the cogwheel that will make the money.
I top the test-tube with another tube, the width of the neck of a claret bottle.The Life of the Fly
J. Henri Fabre
- 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
Word Origin and History for test-tube
Online Etymology Dictionary, © 2010 Douglas Harper
- Produced or cultivated in a test tube.
- Conceived by or developed from fertilization in laboratory apparatus or by artificial insemination.
- A clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation.
- 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.