Added 9 October 2026 powertrain /ˈpaʊɚˌtɹeɪn/ noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about powertrain at Wordnik → Where our words come from → The group of components in a vehicle that generate power and deliver it to the road surface, water, or air. Related Words: enginemotortraindrivetraindrivelinepowerheaddrivepowercar Back to today's word