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incubator

American  
[in-kyuh-bey-ter, ing-] / ˈɪn kyəˌbeɪ tər, ˈɪŋ- /

noun

  1. an apparatus in which eggs are hatched artificially.

  2. an enclosed apparatus in which prematurely born infants are kept in controlled conditions, as of temperature, for protection and care.

  3. an apparatus in which media inoculated with microorganisms are cultivated at a constant temperature.

  4. a person or thing that incubates.

  5. Business. an enterprise that provides support services to entrepreneurs refining startup concepts, in a continuing and open-ended relationship that includes access to mentoring, networking, or legal assistance, often in a collaborative workspace.


incubator British  
/ ˈɪnkjʊˌbeɪtə /

noun

  1. med an enclosed transparent boxlike apparatus for housing prematurely born babies under optimum conditions until they are strong enough to survive in the normal environment

  2. a container kept at a constant temperature in which birds' eggs can be artificially hatched or bacterial cultures grown

  3. a person, animal, or thing that incubates

  4. a commercial property, divided into small work units, which provides equipment and support to new businesses

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

incubator Scientific  
/ ĭnkyə-bā′tər /
  1. An apparatus in which environmental conditions, such as temperature and humidity, can be controlled, often used for growing bacterial cultures, hatching eggs artificially, or providing suitable conditions for a chemical or biological reaction.

  2. An apparatus for maintaining an infant, especially one that is ill or born before the usual gestation period, in an environment of controlled temperature, humidity, and oxygen concentration.


incubator Cultural  
  1. A specialized crib used in caring for infants, in which the temperature and oxygen content of the air can be controlled. Often, babies who are born prematurely will be placed in an incubator until they have become strong enough to be housed in a regular crib.


Etymology

Origin of incubator

First recorded in 1855–60; from Late Latin: literally, “one who lies in or upon (something); one who sleeps in a temple or shrine”; incubate, -tor

Explanation

An incubator is a device that's basically a warm box, meant for keeping premature babies safe and cozy. Sometimes very tiny infants need to spend a little time in an incubator before they're ready to leave the hospital. Incubators are used in hospitals, but you'll also find them on farms, where they keep eggs warm before they hatch, and then protect the baby chicks. A biologist uses another type of incubator, one that controls the temperature for growing microbes or cells in a lab. Because all incubators help something grow and develop, businesspeople also use the term to mean a place or equipment that's available to help a new business get off the ground or grow larger.

Keep Reading on Vocabulary.com

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.

In 1969, he became the first professor in CSUN’s Mexican American studies department, now called the Chicano and Chicana Studies Department, which became an incubator for Latino activism in L.A. and beyond.

From Los Angeles Times • Mar. 24, 2026

They also worked in the same startup ecosystem while Altman was leading incubator Y Combinator from 2014 to 2019.

From The Wall Street Journal • Mar. 3, 2026

Joanna Smith-Griffin founded AllHere while at a startup incubator at Harvard University in 2016, according to the U.S. attorney’s office for the Southern District of New York.

From Los Angeles Times • Mar. 1, 2026

The British Fashion Council's NewGen initiative provides funding for emerging talent, with several up-and-coming designers finding their stride at LFW through the incubator.

From Barron's • Feb. 19, 2026

He watched the samples grow, and then he carefully moved them to the incubator.

From "The House of the Scorpion" by Nancy Farmer