Added 10 October 2026 quaternate adjective Categories: Describing WordsObscure Words adjective ! Definition from Wiktionary (CC BY-SA). More about quaternate at Wordnik → Where our words come from → Composed of, or arranged in, sets of four. quaternate leaves Related Words: quaternarymultiplequaternquaternitarianquaternalsubquadruplequadrinomialquartaryquadralquatralquadrualquadrigenarious Back to today's word