HYDROPAC: Meaning and Definition of

HYDROPAC

Pronunciation: (hī'dru-pak"), [key]
— n.
  1. an urgent warning of navigational dangers in the Pacific Ocean, issued by the U.S. Navy Hydrographic Office. Cf. HYDROLANT.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.