Home › Words › H › hypobariahypobaria/ˌhaɪ.pəʊˈbɛəɹi.ə/hypobaria means low ambient air pressure.hypobaria is pronounced /ˌhaɪ.pəʊˈbɛəɹi.ə/.EtymologyFrom hypo- + baro- + -ia.nounlow ambient air pressureDefinitions & examples from Wiktionary (CC BY-SA 3.0).