v.tr.1. To cause (an organism) to multiply or breed.
2. To breed (offspring).
3. To transmit (characteristics) from one generation to another.
4. To cause to extend to a broader area or larger number; spread: missionaries who propagate the faith.
5. To make widely known; publicize: propagate a rumor.
6. Physics To cause (a wave, for example) to move in some direction or through a medium; transmit.
v.intr.1. To have offspring; multiply.
2. To extend to a broader area or larger number; spread.
3. Physics To move through a medium.