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.
Using machine-learning models, Ms. Margulis’s lab measured music’s story-shaping power.
From The Wall Street Journal • May 15, 2026
Samples from those who have been contacted by health authorities will be sent to a high security lab in Glasgow for analysis.
From BBC • May 14, 2026
The stellar results come a day after Nebius announced it would add the core engineering and research team from AI lab Clarifai and license the company’s compute technology.
From Barron's • May 13, 2026
A startup led by the head of Google’s DeepMind artificial-intelligence lab is trying to use AI to accelerate the creation of new drugs — and it just raised a solid chunk of change from investors.
From MarketWatch • May 12, 2026
Coal took the bag and shuffled into the corner to put on his clothes under the lab coat.
From "Boy 2.0" by Tracey Baptiste
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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.