What does the word opalescent mean?

Usage examples for opalescent

  1. Then the sea lies in opalescent patches, and the low shores fade away into the gathering night. – African Camp Fires by Stewart Edward White
  2. So close the opalescent feet of it looked that it seemed as though the ship's bows were heading through the phantom portals of some new world, but high in air the summit of the curve, clear and burnished as cut- glass, looked infinitely far away. – Beggars on Horseback by F. Tennyson Jesse