A concerted set of messages aimed at influencing the opinions or behavior of large numbers of people.

(transitive, of animals or plants) To cause to continue or multiply by generation, or successive production. / (transitive) To cause to spread to extend; to impel or continue forward in space.

(organic chemistry) An aliphatic hydrocarbon, C₃H₈, a constituent of natural gas.

A person who disseminates propaganda.

Consisting of or spreading propaganda.

(formal, of education) Preparatory or introductory.

An introductory course of instruction.

the multiplication or natural increase in a population / the dissemination of something to a larger area or greater number / (physics) the act of propagating, especially the movement of a wave

(organic chemistry) the simplest allene, CH₂=C=CH₂

Alternative spelling of propaedeutic