Added 9 October 2026 seedling /ˈsiːdlɪŋ/ noun Categories: PlantsRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about seedling at Wordnik → Where our words come from → Young plant or tree grown from a seed. Related Words: seedsaplingplantplantingsowingsemisseedingplantlingsproutembryoplantletplantule Back to today's word