Толковый словарь английского языка - synchronous

adjective Etymology: Late Latin synchronos, from Greek, from syn+ chronos time Date: 1669 happening, existing, or arising at precisely the same time, recurring or operating at exactly the same periods, involving or indicating synchronism, 4. having the same period, geostationary, of, used in, or being digital communication (as between computers) in which a common timing signal is established that dictates when individual bits can be transmitted and which allows for very high rates of data transfer, see: contemporary ~ly adverb ~ness noun