Source : Webster's Revised Unabridged Dictionary (1913)

Omnipresence \Om`ni*pres"ence\, n. [Cf. F. omnipr['e]sence.]
   Presence in every place at the same time; unbounded or
   universal presence; ubiquity.

         His omnipresence fills Land, sea, and air, and every
         kind that lives.                         --Milton.

Source : WordNet®

omnipresence
     n : the state of being everywhere at once (or seeming to be
         everywhere at once) [syn: {ubiquity}, {ubiquitousness}]