Meaning of “propagate” - Learner’s Dictionary

propagate

verb uk us /ˈprɒpəɡeɪt/ formal
PRODUCE [ I, T ]

If you propagate plants, you help them to produce new plants, and if plants propagate, they produce new plants:

Plants are propagated from small cuttings.
TELL [ T ]

to tell your ideas or opinions to a lot of people in order to make them agree with what you are saying:

to propagate lies/rumours
propagation uk us /ˌprɒpəˈɡeɪʃən/ noun [ U ] formal

(Definition of “propagate” from the Cambridge Learner’s Dictionary © Cambridge University Press)