incubate incubate /ˈɪnkjəˌbeɪt/

verb

1. () Sit on (eggs)  ( brood , cover , hatch , incubate )
   sit on (eggs)
    Birds brood
   Birds brood
    The female covers the eggs
   The female covers the eggs
   
2. () Grow under conditions that promote development  ( incubate )
   grow under conditions that promote development