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

Example Sentences

Recent Examples on the Web
Noun
An above-ground, nearly mile-long test tube installed on the streets of Hawthorne has now been removed at the city’s request. Staff Writer Follow, Los Angeles Times, 7 Nov. 2022 Ten million is an enormous number, so to cull the herd, Newland magnetized each of the seven venoms, then mixed them with Friede’s antibodies in a test tube. Kyle Dickman, Outside Online, 16 May 2019 But a good experiment requires everyone to leave the test tube alone. John H. Cochrane, WSJ, 24 Aug. 2022 Now, those minor-league test tube bonus babies are nearly ready for the bigs. Gabe Lacques, USA TODAY, 17 July 2022 And in test tube studies, the aloe plant has been shown to have anti-inflammatory properties. Caroline Picard, Good Housekeeping, 17 July 2022 But mRNA technology is something like a hack: even though mRNA vaccines can be synthesized in a test tube, our bodies recognize them as biological. Achal Prabhala, Scientific American, 11 July 2022 Initially, Doudna and Charpentier used CRISPR to cut DNA in a test tube. Ryan Cross, BostonGlobe.com, 28 June 2022 The usual sense of being thrown together in a show biz test tube eludes them. Michelle Ruiz, Vogue, 4 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'test-tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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 2 Dec. 2022.

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ