Webster's Revised Unabridged Dictionary · 1913

Anguillan

Anguillan , noun

1.
a native or inhabitant of the island of Anguilla in the West Indies.

Anguillan , adjective

1.
of or pertaining to Anguilla; as, Anguillan sea food specialties.
2.
of, pertaining to, or characteristic of Anguillans or Anguilla; as, The Anguillan population of the islands.