synchronously
- r in synchrony; in a synchronous manner
in four-chambered hearts, the two auricles move synchronously
- Two opposed pistons move synchronously together and apart in the cylinder.
- For their official appearance, the Rockettes will dance four of their most famous routines in 16 minutes: Military March, in which 72 legs operate as synchronously as two; a .
- Two opposed pistons move synchronously together and apart in the cylinder.