Home › Words › T › trigatrigatriga means TRIGA: Acronym of training, research, isotopes, General Atomics (“a type of nuclear reactor originally made by General Atomics”).EtymologyFrom Latin triga, a contraction of ter or tri- (“thrice”) + iuga (“yoked”).nameTRIGA: Acronym of training, research, isotopes, General Atomics (“a type of nuclear reactor originally made by General Atomics”).nounA three-horse chariot used by the Ancient Romans.Definitions & examples from Wiktionary (CC BY-SA 3.0).