Home › Words › P › petrodentinepetrodentinepetrodentine means A very hard, hypermineralized form of dentine.Among words judged in Lexicurio's Arena, petrodentine ranks #28,412 of 42,752 for Qualifying.EtymologyFrom petro- + dentine.nounA very hard, hypermineralized form of dentine.Definitions & examples from Wiktionary (CC BY-SA 3.0).