In science, incubation is a process of development. An incubation period is when a disease takes hold and produces symptoms — and it's also the phase of an egg getting ready to hatch. Incubation is the act or process of keeping something warm or developing something, especially an infection or an egg. Learn the meaning , synonyms, antonyms, and translations of incubation from various sources. INCUBATE definition : 1. When a bird, etc. incubates its eggs, it keeps them warm until the young come out, and when eggs…. Learn more. Learn the English definition and meaning of Incubation with examples, pronunciation, and translations to enhance your vocabulary.