laboratory

noun

lab·​o·​ra·​to·​ry ˈla-b(ə-)rə-ˌtȯr-ē How to pronounce laboratory (audio)
 sometimes  ˈla-bər-ˌtȯr-,
 or  ˈla-bə-ˌtȯr-,
 or  lə-ˈbȯr-ə-ˌtȯr-
plural laboratories
often attributive
1
a
: a place equipped for experimental study in a science or for testing and analysis
a research laboratory
broadly : a place providing opportunity for experimentation, observation, or practice in a field of study
b
: a place like a laboratory for testing, experimentation, or practice
That area is a laboratory for cultivating the germ of terrorism.
2
: an academic period set aside for laboratory work
a course of study requiring two lectures and one laboratory per week

Examples of laboratory in a Sentence

experiments conducted in a modern laboratory
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The team performed the measurements using the JYFLTRAP double-Penning trap, which is a world-class instrument housed in the university’s accelerator laboratory. Georgina Jedikovska, Interesting Engineering, 8 Oct. 2025 Patton, the director and chair of TCU laboratory schools, underscored this point when asked about students with Down syndrome who are not accepted to the KinderFrogs program. Lina Ruiz october 7, Fort Worth Star-Telegram, 7 Oct. 2025 Then the Shasta County Coroner’s Office collaborated with Othram, whose scientists extracted DNA from the remains and employed its Forensic-Grade Genome Sequencing to construct a comprehensive DNA profile, the laboratory said in a news release. David Chiu, PEOPLE, 6 Oct. 2025 Dating back 3,000 years, the bracelet was stolen by a specialist at the Egyptian Museum's restoration laboratory and sold for around $4,000 this month. Andrea Margolis, FOXNews.com, 6 Oct. 2025 See All Example Sentences for laboratory

Word History

Etymology

Medieval Latin laboratorium, from Latin laborare to labor, from labor

First Known Use

1592, in the meaning defined at sense 1a

Time Traveler
The first known use of laboratory was in 1592

Browse Nearby Words

Cite this Entry

“Laboratory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laboratory. Accessed 9 Oct. 2025.

Kids Definition

laboratory

noun
lab·​o·​ra·​to·​ry ˈlab-(ə-)rə-ˌtōr-ē How to pronounce laboratory (audio) -ˌtȯr- How to pronounce laboratory (audio)
plural laboratories
: a place equipped for making scientific experiments and tests

Medical Definition

laboratory

noun
lab·​o·​ra·​to·​ry
ˈlab-(ə-)rə-ˌtōr-ē, -ˌtȯr-, British usually lə-ˈbär-ə-t(ə-)rē
plural laboratories
often attributive
: a place equipped for experimental study in a science or for testing and analysis

More from Merriam-Webster on laboratory

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