incubate
in.cu.bate \'in-ky*-.ba-t, 'in-\ \-.ba-t-iv\ vb [L incubatus, pp. of incubare, fr. in- + cubare to lie]- more at HIP 1: to sit upon (eggs) so as to hatch by the warmth of the body; also : to maintain (as an embryo or a chemically active system) under conditions favorable for hatching, development, or reaction 2: to cause to develop 1: to sit on eggs 2: to undergo incubation - in.cu.ba.tive aj