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

Over at Leonard’s lab, Beverly shows a strong interest in her son’s work project, which continues to baffle him. Jessica Radloff, Glamour, "The Big Bang Theory," 10 May 2019 Jose Arballo of the Riverside Department of Public Health told Billboard that his agency had not seen any evidence of a rise in herpes cases, even after reaching out to the agency's lab departments, disease control, and HIV and STD program. Yerin Kim, Seventeen, "Did Coachella Trigger This Major Herpes Outbreak in California?," 30 Apr. 2019 For better climate science, however, Herrman recommends not just an improved status quo within the lab, but outside of it as well. Elena Hilton, Glamour, "Climate Change Will Disproportionately Affect Women, So Why Are Their Voices Being Ignored?," 22 Apr. 2019 According to The Chronicle of Higher Education, the graduate student in question is a teaching assistant who leads a microbiology lab. Lucy Diavolo, Teen Vogue, "A University of Alabama-Birmingham Grad Student’s Alleged Ties to White Nationalism Sparked a Student Protest," 19 Apr. 2019 The specimen samples used to home in on the ancient scents were isolated with help from a paleogenomics lab at UC Santa Cruz run by Beth Shapiro, author of How to Clone a Mammoth: The Science of De-Extinction. Jill Kiedaisch, Popular Mechanics, "You Can Now Smell a Flower That Went Extinct a Century Ago," 16 Apr. 2019 That potency is one reason why a 2015 review of epidemiologic studies and lab experiments published in the American Journal of Infection Control notes that norovirus may present the biggest risk of airborne infection from toilet plume. Carolyn L. Todd, SELF, "What's the Most Sanitary Way to Store Your Toothbrush?," 29 Mar. 2019 Across America and lab rabbits—that aren’t entirely effective in the story. Candice Frederick, Harper's BAZAAR, "Us Offers a Terrifying Vision of Judgement Day," 26 Mar. 2019 Those treatments involve extracting immune T cells, re-engineering them in a lab to home in on cancers, multiplying them, and then inserting them back into patients’ bodies. Sy Mukherjee, Fortune, "Brainstorm Health: Parker Institute CRISPR Breakthrough, Pfizer Reorganization, Gym Tax Deductions," 12 July 2018

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

15 May 2019

Look-up Popularity

Time Traveler for lab

The first known use of lab was circa 1868

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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

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More from Merriam-Webster on lab

Rhyming Dictionary: Words that rhyme with lab

Spanish Central: Translation of lab

Nglish: Translation of lab for Spanish Speakers

Britannica English: Translation of lab for Arabic Speakers

Comments on lab

What made you want to look up lab? Please tell us where you read or heard it (including the quote, if possible).


something valued as if it were money

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