A very large body of salt water that covers most of the Earth’s surface.
From Latin "Oceanus," from Greek "Ōkeanos," the name of a great river believed to circle the world. It originally referred to a mythic world-encircling water rather than specific seas.
The ocean covers about 70% of Earth, yet we’ve explored only a small fraction of its depths—less than we’ve explored the Moon. When you say "ocean," you’re naming the planet’s largest, least-known wilderness.
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