propagation Meaning, Definition & Usage

  1. noun the spreading of something (a belief or practice) into new regions
    extension.
  2. noun the act of producing offspring or multiplying by such production
    generation; multiplication.
  3. noun the movement of a wave through a medium

WordNet

Prop`a*ga"tion noun
Etymology
L. propagatio: cf. F. propagation.
Definitions
  1. The act of propagating; continuance or multiplication of the kind by generation or successive production; as, the propagation of animals or plants.
    There is not in nature any spontaneous generation, but all come by propagation. Ray.
  2. The spreading abroad, or extension, of anything; diffusion; dissemination; as, the propagation of sound; the propagation of the gospel. Bacon.

Webster 1913