propagator
nounUK /ˈprɒpəɡeɪtə/
US /ˈprɑːpəɡeɪtər/
A propagator is a person or thing that helps plants or animals make more of themselves.
She put the seeds in a propagator on the windowsill so they would sprout.
RELATED WORDS
OTHER MEANINGS
2. A small covered box used to help seeds grow into young plants.
The gardener filled the propagator with soil and planted tomato seeds.
3. A person who spreads ideas or beliefs to many people.
He was a propagator of new farming methods in his village.
4. In science, something that carries or spreads energy, like a wave.
Light is a propagator of energy through space.