Home › Words › G › gyromitringyromitringyromitrin means A toxin and possible carcinogen present in most members of the fungal genus Gyromitra, most notably the false morel Gyromitra esculenta.EtymologyGyromitra + -innounA toxin and possible carcinogen present in most members of the fungal genus Gyromitra, most notably the false morel Gyromitra esculenta.Definitions & examples from Wiktionary (CC BY-SA 3.0).