Definition of: incubator

(in′kyə·bā′tər, ing′-) noun
1. An apparatus kept at a uniform warmth, as by a lamp, for artificial hatching of eggs.
2. Bacteriol. An apparatus for artificial development of micro–organisms, as bacteria, especially one in which the temperature may be regulated.
3. An appliance for keeping warm a prematurely born child.
4. One who or that which incubates. [<L, a hatcher]
INCUBATOR
a. Egg tray.
b. Nursery drawer.
Incubators are variously heated by attached gas– or oil–fired heating units or by electrical units.