Added 9 October 2026 outgrowth /ˈaʊtˌɡroʊθ/ noun Categories: NatureActionsRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about outgrowth at Wordnik → Where our words come from → A natural consequence of development. The gradual beginning or coming forth. figurines presage the emergence of sculpture in Greece A natural prolongation or projection from a part of an organism either animal or plant. a bony process Related Words: offshootbranchappendagegrowthemergenceoffsetprocessfruitneuritelumpdriftdrifting Back to today's word