How to Say "propagation" in Spanish
The Spanish word for “propagation” is “transmisión” — C1 level. This is a very common word in everyday Spanish.
English → SpanishC1
nounC1formal
of waves or energy

Examples
La transmisión de calor se realiza por conducción.
The transmission of heat occurs by conduction.
Se implementaron medidas para reducir la transmisión de enfermedades.
Measures were implemented to reduce the transmission of diseases.
Formal Use
This meaning is often used in formal or technical writing, especially in news about health or science. It sounds more precise than simpler words like 'pasar' (to pass).
Related Translations
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