The Collaborative International Dictionary
Septinsular \Sep*tin"su*lar\, a. [Septi- + insular.] Consisting of seven islands; as, the septinsular republic of the Ionian Isles.
a. Consisting of seven islands.
Usage examples of "septinsular".
Then it became part of that first strange Septinsular Republic of which the Czar was to be the protector and the Sultan the overlord.