: 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
The Week Uk, theweek, 21 Nov. 2024
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
Allison Herries, Verywell Health, 15 Oct. 2024
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
See all Example Sentences for test-tube 
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
Struggling to create the first test-tube baby are nurse and embryologist Jean Purdy (Thomasin McKenzie), scientist Robert Edwards (James Norton) and surgeon Patrick Steptoe (Bill Nighy).
—The Week Uk, theweek, 21 Nov. 2024
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
Noun
However, most research has occurred with wheatgrass compounds in test tubes or animal studies rather than in humans.
—Allison Herries, Verywell Health, 15 Oct. 2024
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
See all Example Sentences for test-tube
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 15 Dec. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share