Adverb
transatlantically (comparative more transatlantically, superlative most transatlantically)
On the other side of the Atlantic Ocean.
Eighteen fifty-eight was a year of great technological advancement in the West. That was the year when Queen Victoria was able, for the first time, to communicate with President Buchanan, through the Transatlantic Telegraphic Cable. And they were the first to 'Twitter' transatlantically. Hans Rosling