Noun
The act of propagating; continuance or multiplication of the kind by generation or successive production; as, the propagation of animals or plants.
The spreading abroad, or extension, of anything; diffusion; dissemination; as, the propagation of sound; the propagation of the gospel.
Source: Webster's dictionaryTo compel a man to furnish contributions of money for the propagation of opinions which he disbelieves, is sinful and tyrannical. Thomas Jefferson
The extinction of race consciousness as between Muslims is one of the outstanding achievements of Islam, and in the contemporary world there is, as it happens, a crying need for the propagation of this Islamic virtue. Arnold J. Toynbee
Year-end financial statements express a truth about office life which is no less irrefutable yet also, in the end, no less irrelevant or irritating than an evolutionary biologist's proud reminder that the purpose of existence lies in the propagation of our genes. Alain de Botton
Men who marry for gratification, propagation or the matter of buttons or socks, must expect to cope with and deal in a certain amount of quibble, subterfuge, concealments, and double, deep-dyed prevarication. Elbert Hubbard
The more the concept of reason becomes emasculated, the more easily it lends itself to ideological manipulation and to propagation of even the most blatant lies. ... Subjective reason conforms to anything. Max Horkheimer
Now, the velocity of wave propagation can be seen, without the aid of any mathematical analysis, to depend on the elasticity of the medium and its density; for we can see that if a medium is highly elastic the disturbance would be propagated at a great speed. Albert Abraham Michelson