An edible clam native to the North Atlantic Ocean, Arctica islandica

(idiomatic) A very small or insignificant amount; something of little importance. / (card games, uncountable) A variety of poker involving an extra dealt card shared by all players.

plural of oceanic trench

An ocean on a planet other than Earth.

(dated) the Mediterranean Sea

Synonym of seabed and seafloor, especially used for that of an ocean.

The official nickname for the state of Rhode Island in the United States of America.

blue eyes

(climate change) The increase in acidity of oceanic waters, from increased atmospheric carbon dioxide levels that increase dissolved carbon dioxide in seawater, which causes increased carbonic acid in ocean waters, lowering its pH level.

(planetology) A basin in Nearside, Moon, Earth, Solar System