Added 10 October 2026 isolette noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about isolette at Wordnik → Where our words come from → An incubator for a new-born baby. Related Words: incubatorcouveusehotboxincubatoryincubatoriumbrooderhumidicribisolatorhibernacleinfantorium Back to today's word