|Origin:||gestatio, from gestare 'to bear'|
the process by which a child or young animal develops inside its mother's body before birth, or the period of time when this happens [↪ pregnancy]:
The gestation period of a horse is about 11 months.
the process by which a new idea, piece of work etc is developed, or the period of time when this happens [= development]
The report was a very long time in gestation.