noun
EXAMPLES FROM CORPUS
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A propagator can also be used to safeguard tender plants from frost.
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His Minister of Education, Uvarov - the propagator of the doctrine - understood the tsar's position only too well.
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Our hardwood propagator would do even better.
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Place the sown containers in a warm propagator to germinate.
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Unheated propagators must be placed somewhere warm.
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When there's a possibility of frost I cover it with a polythene bin bag - an instant propagator .