Home › Words › T › trophotropytrophotropytrophotropy · noun — A state of relaxation, drowsiness and inactivity induced by the parasympathetic nervous system and the action of serotonin.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, trophotropy ranks #1,792 of 43,061 for Qualifying.EtymologyFrom tropho- + -tropy.nounA state of relaxation, drowsiness and inactivity induced by the parasympathetic nervous system and the action of serotonin.Definitions & examples from Wiktionary (CC BY-SA 3.0).