Entry 2 senses Webster, 1913 Jura /jo͝or'-ə/ · Ju·ra · IPA /ˈd͡ʒʊɹə/ 01 prop. n. 1. A range of mountains between France and Switzerland. 1. 1. A range of mountains between France and Switzerland. 2. The Jurassic period. See Jurassic.(Geol.) See: Jurassic