test-tube

1 of 2

adjective

1
: in vitro
test-tube experiments
2
: produced by in vitro fertilization
test-tube babies

test tube

2 of 2

noun

: a plain or lipped tube usually of thin glass closed at one end and used especially in chemistry and biology

Examples of test-tube in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Even before the birth of the first test-tube baby, conservative thinkers were distinctly preoccupied with what IVF might do to the structure of the American family. Kristen V. Brown, The Atlantic, 26 Sep. 2024 In a departure from her usual beat, Ms. Hosler wrote a moving first person account in 1985 for the old Sunday Sun Magazine about her experiences as one of the first to go through Hopkins’s test-tube baby program which in her case was not successful. Frederick N. Rasmussen, Baltimore Sun, 11 Feb. 2024
Noun
Every student followed protocol to preserve the fish and minimize contamination, in many cases hauling gloves, test tubes, and coolers around in their cars. Lauren Leffer, Popular Science, 6 Nov. 2024 What’s more, the potential benefits of other plant ingredients used in these supplements, like lion’s mane mushrooms, are mostly backed by in-vitro studies (a.k.a. experiments done on cells in a test tube) or rodent studies. Jessie Van Amburg, SELF, 29 Oct. 2024 See all Example Sentences for test-tube 

Word History

First Known Use

Adjective

1866, in the meaning defined at sense 1

Noun

1846, in the meaning defined above

Time Traveler
The first known use of test-tube was in 1846

Dictionary Entries Near test-tube

Cite this Entry

“Test-tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/test-tube. Accessed 23 Nov. 2024.

Kids Definition

test tube

noun
: a tube of thin glass closed at one end and used especially in chemistry and biology

Medical Definition

test-tube

1 of 2 adjective
1
: in vitro
test-tube experiments
2
: produced by in vitro fertilization
test-tube babies

test tube

2 of 2 noun
: a plain or lipped tube usually of thin glass closed at one end and used especially in chemistry and biology
Last Updated: - Updated example sentences
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