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had propagated

  • past perfect
    of propagate.
    propagate
    verb (used with object)
    to cause (an organism) to multiply by any process of natural reproduction from the parent stock.

Example Sentences

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The belief, which air theorists had propagated since the onset of combat planes in World War I, seemed confirmed by the results of World War II. However, the U.S.

From Slate ● Jul. 30, 2026

Dr. Glenzer, however, said he was sure that the fusion had propagated.

From New York Times ● Aug. 17, 2021

Thirteen generations of moths, nine generations of saw-flies, every member a female, had propagated themselves quite cheerfully without the assistance of males of the species.

From Time Magazine Archive

Last week Dr. Krueger announced that he had propagated phage without any bacteria at all.

From Time Magazine Archive

The solitary Leicester ram had propagated a numerous family, and a flock of fat ewes, with their lambs, throve to perfection.

From Eight Years' Wanderings in Ceylon by Sir Samuel White Baker