Meaning of “marine” in the English Dictionary

"marine" in British English

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marineadjective [ before noun ]

uk /məˈriːn/ us /məˈriːn/

related to the sea or sea transport:

The oil slick seriously threatens marine life around the islands.
Marine biologists are concerned about the effects of untreated sewage that is flowing into coastal waters.
One plane, a marine F18, was lost in the raid.
The Central harbour area will be closed to all marine traffic from 3.45 p.m. to 4.30 p.m.
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marinenoun [ C ]

uk /məˈriːn/ us /məˈriːn/

a soldier who works closely with the navy and is trained especially for military operations on land that begin from the sea

(Definition of “marine” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"marine" in American English

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marineadjective [ not gradable ]

us /məˈrin/

of or near the sea:

a marine biologist
The oil slick threatened marine life around the islands.

Marinenoun [ C ]

us /məˈrin/

a member of the United States Marine Corps, a part of the US military forces that consists of soldiers who operate on land and sea

(Definition of “marine” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"marine" in Business English

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marineadjective [ before noun ]

uk /məˈriːn/ us

TRANSPORT related to the sea or sea transport:

The oil slick seriously threatens marine life around the islands.
Over the years we have been rather shortsighted about protecting our marine environment.
a marine engineer/biologist/ecologist
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(Definition of “marine” from the Cambridge Business English Dictionary © Cambridge University Press)