lab
1 Americannoun
noun
abbreviation
abbreviation
-
labor.
-
laboratory.
-
laborer.
abbreviation
-
Laborite.
-
Labrador.
abbreviation
-
politics Labour
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Labrador
noun
-
short for laboratory
-
short for Labrador retriever
abbreviation
-
laboratory
-
labour
Etymology
Origin of lab1
By shortening
Origin of Lab2
By shortening
Origin of LAB3
From its use in digital communications
Explanation
A lab is a room or building where science experiments, tests, and research are done. Most high schools have science labs for biology and chemistry classes. Lab is shorthand for laboratory, with its Medieval Latin root laboratorium, "a place for labor or work," from the Latin laborare, "to work." Many scientists and researchers go to work each day in a lab (often wearing a "lab coat," a white smock that protects their clothes). Some labs are equipped for studying the way plants grow and reproduce, while in others scientists study the brainwaves of human subjects or the traits of a virus. If you are a scientist, chances are you hang out in a lab.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Our data shows that middle managers aren’t going anywhere,” said Sneha Puri, an economist with the Indeed Hiring Lab.
From MarketWatch • May 7, 2026
Irwin has a background in engineering and worked at Johns Hopkins University’s Applied Physics Lab, according to her bio.
From Los Angeles Times • May 1, 2026
Zuckerberg spotlighted a new Muse Spark AI model built by Meta's nascent "Superintelligence Lab", saying its technology will be put to work in Meta's offerings such as smartglasses and its advertising system.
From Barron's • Apr. 29, 2026
Further study by National Systematics Lab scientist Abigail Reft identified the cells as spirocysts, which are unique to the Hexacorallia subgroup of cnidarians.
From Science Daily • Apr. 27, 2026
The Rad Lab received the news from Ernest Lawrence, who came “roaring into the lab . . . waving a copy of Comptes Rendus over his head,” as Livingston remembered the moment.
From "Big Science" by Michael Hiltzik
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.