Multiplication or increase, as by natural reproduction.
The process of spreading to a larger area or greater number; dissemination.
Physics The act or process of propagating, especially the process by which a disturbance, such as the motion of electromagnetic or sound waves, is transmitted through a medium such as air or water.
Main Entry: prop·a·ga·tion Pronunciation: "präp-&-'gA-sh&n Function: noun : the act or action of propagating: as a: increase (as of a kind of organism) in numbers <propagation of a pure culture of bacteria> b: the spreading or transmission of something <propagationof a nerve impulse>