(adj): of the same period
(adj): existing at the same time
(adj): occurring or operating at the same time
(adj): occurring in the same period of time
(adj): of or relating to the simultaneous performance of multiple operations
(adj): (of taxa) occurring in the same period of geological time
(adj): operating in unison
(adj): vs. asynchronous) -- ((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