Synchronous

(adj.) occurring or existing at the same time or having the same period or phase; 'recovery was synchronous with therapy'- Jour.A.M.A.; 'a synchronous set of clocks'; 'the synchronous action of a bird's wings in flight'; 'synchronous oscillations' .

(adj.) (digital communication) pertaining to a transmission technique that requires a common clock signal (a timing reference) between the communicating devices in order to coordinate their transmissions .

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