The meaning of PROPAGATION is the act or action of propagating. How to use propagation in a sentence.

propagation noun [U] (SPREADING) formal the act or process of spreading something, especially a harmful message or opinion, among a lot of people:

1 day ago · This propagation chapter from the Extension Gardener Handbook explains how and why to grow new plants from seed (sexual reproduction) and from cuttings (a…

Propagation is a great way to multiply your plant collection. This guide will teach you how to propagate different types of plants using various methods.

propagation noun [U] (SPREADING) formal the act or process of spreading something, especially a harmful message or opinion, among a lot of people:

Jan 14, 2026 · An interactive map that shows real time, worldwide radio activity and propagation specific to the user's location on all amateur radio HF bands.

PROPAGATION definition: the act of propagating. See examples of propagation used in a sentence.

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. …

There are nine meanings listed in OED's entry for the noun propagation, three of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of propagation noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.