invocation Meaning, Definition & Usage

  1. noun a prayer asking God's help as part of a religious service
    supplication.
  2. noun an incantation used in conjuring or summoning a devil
  3. noun calling up a spirit or devil
    conjuring; conjuration; conjury.
  4. noun the act of appealing for help

WordNet

In`vo*ca"tion noun
Etymology
F. invocation, L. invocatio.
Definitions
  1. The act or form of calling for the assistance or presence of some superior being; earnest and solemn entreaty; esp., prayer offered to a divine being.
    Sweet invocation of a child; most pretty and pathetical! Shak.
    The whole poem is a prayer to Fortune, and the invocation is divided between the two deities. Addison.
  2. (Law) A call or summons; especially, a judicial call, demand, or order; as, the invocation of papers or evidence into court.

Webster 1913