Green sea definitions

Green sea

1) Wave breaking over the bow
Found on https://www.crosswordclues.com/clue/green-sea

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Green Sea

In naval terms, a green sea is a sea which travels over the deck of a ship without any waves breaking. Considerable damage may be done to the ship by such a sea.
Found on http://www.probertencyclopaedia.com/browse/RG.HTM

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