incubate

verb

in·​cu·​bate ˈiŋ-kyə-ˌbāt 

ˈin-

incubated; incubating

transitive verb

1

a

: to sit on (eggs) so as to hatch by the warmth of the body

b

: to maintain (something, such as an embryo or a chemically active system) under conditions favorable for hatching, development, or reaction

2

: to cause or aid the development of

incubate an idea

intransitive verb

1

: to sit on eggs

2

: to undergo incubation : develop

incubative

ˈiŋ-kyə-ˌbā-tiv 

ˈin-

adjective

incubatory

ˈiŋ-kyə-bə-ˌtȯr-ē 

-ˌbā-tə-rē

ˈin-

adjective

Synonyms

• spawn
• sit
• hatch
• lay
• brood

Examples of incubate in a Sentence

The female bird incubates the eggs.

Researchers incubated the cells in the laboratory.

The cultures must incubate for five more days.

The virus will incubate in the body for several days before the patient experiences any symptoms.

Recent Examples on the Web

Bitfury helps incubate other companies through its services, and Kikvadze is dedicated to creating conditions where innovation can flourish. —Lyssanoel Frater, USA Today, 6 Oct. 2025

New ideas and the people who generate them have not been given the room or resources to incubate and grow. —Lila MacLellan, Fortune, 1 Oct. 2025

Sony Music Entertainment Japan’s Nobu Nakatake emphasized the persistence required to incubate global fandom. —Naman Ramachandran, Variety, 30 Sep. 2025

Female and male participate in harvesting and storing acorns, take part in incubating eggs and feeding young. —Cecilia Rodriguez, Forbes.com, 18 Sep. 2025

Word History

Etymology

Latin incubatus, past participle of incubare, from in- + cubare to lie

First Known Use

1641, in the meaning defined at transitive sense 1a

Rhymes for incubate

• abdicate
• abrogate
• acetate
• activate
• actuate
• adsorbate
• aggravate
• agitate
• alginate
• alienate
• allocate
• amputate

Kids Definition

incubate

verb

in·​cu·​bate ˈiŋ-kyə-ˌbāt 

ˈin-

incubated; incubating

1

: to sit on eggs to hatch them by warmth

2

: to maintain (as bacteria or a chemically active system) under conditions good for development or reaction

3

: to go through the process of incubation

Medical Definition

incubate

verb

in·​cu·​bate ˈiŋ-kyə-ˌbāt, ˈin- 

incubated; incubating

transitive verb

1

: to maintain (as eggs, embryos of animals, or bacteria) under prescribed and usually controlled conditions favorable for hatching or development especially in an incubator

2

: to maintain (a chemically active system) under controlled conditions for the development of a reaction

intransitive verb

: to undergo incubation

the cultures incubated for five days