: 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
Cheryl Fenton, Parents, 5 Dec. 2024
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
John Timmer, Ars Technica, 17 Mar. 2025
Lilian had not taken such an inventory with Eileen, whose face had begun to fade from her memory, but Eileen had never asked her to listen to her own blood filling the test tubes.
—Yiyun Li, The New Yorker, 9 Mar. 2025
See All Example Sentences for test-tube
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Adjective
National Geographic harnesses some of that tendency in this kit that contains instructions and equipment for 15 different gross experiments with themes like boiling boogers, farting slime, bursting blood cells, eyeballs, and test-tube vomit.
—Cheryl Fenton, Parents, 5 Dec. 2024
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
Noun
Used in a test tube, the system worked: Amino acids were linked together in a polymer.
—John Timmer, Ars Technica, 17 Mar. 2025
Lilian had not taken such an inventory with Eileen, whose face had begun to fade from her memory, but Eileen had never asked her to listen to her own blood filling the test tubes.
—Yiyun Li, The New Yorker, 9 Mar. 2025
See All Example Sentences for test-tube
Cite this Entry
“Test-tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/test-tube. Accessed 10 Apr. 2025.
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