Source : Webster's Revised Unabridged Dictionary (1913)

Omnipresent \Om`ni*pres"ent\, a. [Omni- + present: cf.F.
   omnipr['e]sent.]
   Present in all places at the same time; ubiquitous; as, the
   omnipresent Jehovah. --Prior.

Source : WordNet®

omnipresent
     adj : being present everywhere at once [syn: {ubiquitous}]