Home › Words › T › theriogenologytheriogenologytheriogenology · noun — the branch of veterinary medicine concerned with reproduction.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, theriogenology ranks #36,942 of 43,283 for Qualifying.EtymologyFrom therio- + -gen + -ology, introduced in 1970 by American classicist Herbert Howe.nounThe branch of veterinary medicine concerned with reproduction.Definitions & examples from Wiktionary (CC BY-SA 3.0).