Relating to or characteristic of the ocean, especially the deep sea far from shore. Can describe vast scale or depth, like oceanic proportions or feelings.
From 'ocean' (from Greek 'Okeanos,' the river that encircled the earth in mythology) plus suffix '-ic.' Scientific usage developed in the 18th century.
The ancient Greeks thought Oceanus was a river circling the flat earth, but the word now describes something we're still discovering—we've mapped less of our oceans than the surface of Mars!
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