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 At the same time, staffing shortages and supply chain issues have also challenged testing efforts, from temporarily closing sites to delaying lab results. Meredith Deliso, ABC News, 21 Jan. 2022 About 75 lab results are available on the Kind Oasis website for CBD and Delta-8 products. Jordyn Noennig, Milwaukee Journal Sentinel, 5 Jan. 2022 Attendees 12 and older must present proof of either full vaccination (booster not required) or a negative COVID-19 test within 72 hours of the event (both PCR lab results and rapid antigen results are acceptable). Selome Hailu, Variety, 31 Dec. 2021 Under his plan, clinically urgent cases would be prioritized to cut waiting times for tests and lab results, with PCR tests required only for people with symptoms. NBC News, 29 Dec. 2021 Data from wastewater analysis often tracks closely with data compiled from lab results. Josh Ulick, WSJ, 21 Dec. 2021 The lab results have not yet been confirmed in real-world studies. Harold Maass, The Week, 20 Dec. 2021 Early lab results from around the world show a potentially dramatic drop in the body’s antibody response to the omicron variant among people who are fully vaccinated or previously infected. Aidin Vaziri, San Francisco Chronicle, 14 Dec. 2021 The University of Texas at Austin Health Services said preliminary lab results indicate that three people in Travis County have contracted the omicron coronavirus variant, according to a news release from the city of Austin. Timothy Fanning, San Antonio Express-News, 13 Dec. 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

27 Jan 2022

Cite this Entry

“Lab.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2022.

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More Definitions for lab



English Language Learners Definition of lab

 (Entry 1 of 2)

: a class period for laboratory work



English Language Learners Definition of Lab (Entry 2 of 2)


\ 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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