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v. prop·a·gat·ed, prop·a·gat·ing, prop·a·gates
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.
1. To have offspring; multiply.
2. To extend to a broader area or larger number; spread.
3. Physics To move through a medium.

[Latin prōpāgāre, prōpāgāt-; see pag- in Indo-European roots.]

prop′a·ga·ble (-gə-bəl) adj.
prop′a·ga′tive adj.
prop′a·ga′tor n.


1. a person or thing that propagates
2. (Horticulture) a shallow box with a heating element and cover used for germinating seeds or rooting cuttings
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.propagator - someone who propagates plants (as under glass)
botanist, phytologist, plant scientist - a biologist specializing in the study of plants
2.propagator - someone who spreads the news
communicator - a person who communicates with others
References in periodicals archive ?
SOW | your tomato seeds in a heated propagator or cover with a plastic bag.
Abdul Fattah Jacaria, an Islamic propagator from Ministry of Islamic Affairs, Old Industrial area, was also present.
Place the pots in a propagator or push wooden coffee sticks into the soil around the cutting and cover with a plastic bag.
If Fleming was as successful as reputed at germinating seed so early in the year then I imagine he must have had some kind of propagator, perhaps not a greenhouse which is too costly to heat when only a few packets of seed is involved.
Mark Phillips, prosecuting at Birmingham Crown Court, said when police raided Raymond's home at Woodend Road, Erdington, officers found 16 large cannabis plants being grown in tents in two bedrooms and 21 baby plants in a propagator.
Sow seeds of tomatoes in a heated propagator or on a warm windowsill to grow on outdoors when all danger of frost is over.
Summer bedding plants can be sown under a heated propagator, or in the greenhouse.
Start off greenhouse crops such as tomatoes and peppers either on a windowsill indoors or in a heated propagator.
TRADING standards officers are warning owners of a heated plant propagator to stop using them after the discovery of a fault.
Use a heated propagator to sow half-hardy annuals and other bedders like antirrhinums, African marigolds, begonias, gazanias and lobelias ?
You'll have more choice of what to grow if you have a greenhouse heater or at least a heated propagator to get tender veg off to a good start.
Dennis Bottemiller, nursery manager and chief propagator at the Rhododendron Species Botanical Garden in Federal Way, Wash.