[ 'sɪŋkrənəs ]
■ adjective
1》 existing or occurring at the same time.
2》 of or denoting a satellite which revolves in its orbit in exactly the same time as the primary body rotates on its axis.
Derivatives
~ly adverb
Origin
C17: from late L. synchronus (from Gk sunkhronos , from sun- 'together' + khronos 'time') + -ous .