SYNCHRONAL
synchronous, synchronal, synchronic
(adjective) occurring or existing at the same time or having the same period or phase; “recovery was synchronous with therapy”- Jour.A.M.A.; “a synchronous set of clocks”; “the synchronous action of a bird’s wings in flight”; “synchronous oscillations”
Source: WordNet® 3.1
Adjective
synchronal (comparative more synchronal, superlative most synchronal)
Synchronous; simultaneous.
Source: Wiktionary
Syn"chro*nal, a. Etym: [See Synchronous.]
Definition: Happening at, or belonging to, the same time; synchronous;
simultaneous. Dr. H. More.
Syn"chro*nal, n.
Definition: A synchronal thing or event.
Source: Webster’s Unabridged Dictionary 1913 Edition