PROPAGA'TION, noun [Latin propagatio.] 1. The act of propagating; the 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 2. The spreading or extension of any thing; as the propagation of sound or of reports. 3. The spreading of any thing by planting and establishing in places before destitute; as the propagation of the gospel among pagans. 4. A forward or promotion.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI