Om*nis"cient (?), a. [Omni- + L. sciens, -entis, p. pr. of scire to know: cf. F. omniscient. See Science.]
Having universal knowledge; knowing all things; infinitely knowing or wise; as, the omniscient God.
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Om*nis"cient*ly, adv.
For what can scape the eye
Of God all-seeing, or deceive his heart
Omniscient?
Milton.
© Webster 1913.