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HYDROPAC

[ hahy-druh-pak ]
/ ˈhaɪ drəˌpæk /
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noun
an urgent warning of navigational dangers in the Pacific Ocean, issued by the U.S. Navy Hydrographic Office.
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Origin of HYDROPAC

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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