Definitions

1. adjective

relating to or characteristic of a system of government in which the country is divided into seven regions or territories, each governed by a separate ruler

“The heptarchic system of governance was unique to this particular medieval kingdom.”

2. noun

a system of government in which the country is divided into seven regions or territories, each governed by a separate ruler

“The heptarchic system of the medieval kingdom has been studied extensively by historians.”