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Douglas Harper's Etymology Dictionary
trans-oceanic

1827, "situated across the ocean," from trans- + oceanic. Meaning "passing over the sea" is recorded from 1868.

Wikipedia
Trans-Oceanic

The Trans-Oceanic (abbreviated T/O) was the name given to a series of portable radios produced from 1942 to 1981 by Zenith Radio. They were characterised by their heavy-duty, high-quality construction and their performance as shortwave receivers.

Usage examples of "trans-oceanic".

So after using the very latest in cryptographic technology and trans-oceanic packet-switching communications to conceal his identity, Randy now finds himself faced with the necessity of typing his name into the fucking machine.

They consist of a broad belt, not unlike the life belt used aboard trans-oceanic liners upon Earth.