noun (1)
\ ˈlab How to pronounce lab (audio) \

Definition of lab

 (Entry 1 of 3)


noun (2)
\ ˈlab How to pronounce Lab (audio) \

Definition of Lab (Entry 2 of 3)

Definition of Lab (Entry 3 of 3)


Examples of lab in a Sentence

Recent Examples on the Web: Noun The sudden rise of the coronavirus lab-leak theory. Sarah Larson, The New Yorker, 16 June 2021 His first and only guest was his old boss comedian Jon Stewart who spent his entire segment making a case for the lab leak theory of the Wuhan virus. Will Jeakle, Forbes, 15 June 2021 So yes, the largest failure to consider the lab-leak theory rests with the media. WSJ, 14 June 2021 An accidental lab-leak, or the dark side of mother nature? Lucien Bruggeman, ABC News, 14 June 2021 But the decision to downplay the possibility of a lab leak may have also been a significant overcorrection. Alex Shephard, The New Republic, 13 June 2021 The lab-leak theory is controversial and politically loaded. Dr. Sanjay Gupta, CNN, 10 June 2021 In other words, the furin cleavage site on SARS2 does nothing to validate the lab-leak theory. Michael Hiltzik, Star Tribune, 10 June 2021 Virus researchers have not publicly identified any key new scientific evidence that might make the lab-leak hypothesis more likely. Christina Larson And Nomaan Merchant,, 9 June 2021

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

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First Known Use of lab

Noun (1)

circa 1868, in the meaning defined above

Noun (2)

1925, in the meaning defined above

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Statistics for lab

Last Updated

20 Jun 2021

Cite this Entry

“Lab.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2021.

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More Definitions for lab



English Language Learners Definition of lab

: a class period for laboratory work


\ ˈlab How to pronounce lab (audio) \

Kids Definition of lab


\ ˈlab How to pronounce lab (audio) \

Medical Definition of lab

More from Merriam-Webster on lab

Nglish: Translation of lab for Spanish Speakers

Britannica English: Translation of lab for Arabic Speakers


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