synchronously

from WordNet (r) 3.0 (2006)

synchronously
    adv 1: in synchrony; in a synchronous manner; "in four-chambered
           hearts, the two auricles move synchronously"

from The Collaborative International Dictionary of English v.0.48

Synchronous \Syn"chro*nous\, a. [Gr. ?; sy`n with + ? time. Cf.
   {Chronicle}.]
   Happening at the same time; simultaneous. --
   {Syn"chro*nous*ly}, adv.
   [1913 Webster]