SYNCHRONOUSLY

synchronously

(adverb) in synchrony; in a synchronous manner; “in four-chambered hearts, the two auricles move synchronously”

Source: WordNet® 3.1

Etymology

Adverb

synchronously (comparative more synchronously, superlative most synchronously)

In a synchronous manner; carried out with synchrony; in phase or at the same time.

Source: Wiktionary

SYNCHRONOUS

Syn"chro*nous, a. Etym: [Gr. Chronicle.]

Definition: Happening at the same time; simultaneous.

– Syn"chro*nous*ly, adv.

Source: Webster’s Unabridged Dictionary 1913 Edition