Definition of "islandwide"

islandwide

adjective
not comparable
1. Extending throughout an island.
  Quotations
  Mr. Obama's determined effort to remain out of power for now extended to Oahu's islandwide loss of electricity last Friday and Saturday.
  2009 January 2, Jackie Calmes, “‘Hail to Chief’ Ambience for President in Waiting”, in New York Times‎
adverb
not comparable
1. Throughout an island.
  Quotations
  The bakery added bread and delivered it islandwide.
  2011, Stormy Cozad, Kauai: 100 Years in Postcards, page 43