mesotocin

noun

1. (uncountable)A neurohormone found in nonmammalian vertebrates with properties similar to oxytocin.

   “In mammals, vasopressin and oxytocin play important roles in social behaviors, and reptiles have structurally similar hormones called vasotocin and mesotocin. […] Dr. Campos’s research indicates that vasotocin may alter chemical communication between green anole lizards, and other researchers found that mesotocin may be related to courtship behaviors in brown anoles.”