Added 10 October 2026 gestation /d͡ʒɛsˈteɪʃən/ noun Categories: TimeDescribing WordsUncommon Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about gestation at Wordnik → Where our words come from → The period of time during which an animal or human offspring physically develops inside the mother's body until it is born. The process of development of a plan or idea. Related Words: pregnancychildbearingbirthconceptionreproductionbrewingweightpipelineoffspringmakingpreparation Back to today's word