Biol. [f. Gr. θρέμμα (-ατ-) nursling + -LOGY.] That part of biology that treats of the propagation or breeding of domestic animals and plants.

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1888.  E. R. Lankester, in Encycl. Brit., XXIV. 802/1. The area of biological knowledge … which relates to the breeding of animals and plants, their congenital variations, and the transmission and perpetuation of those variations may be called thremmatology. Ibid. Darwin’s introduction of thremmatology into the domain of scientific biology.

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1889.  Athenæum, 12 Jan., 47/2. The second subdivision, ‘Bionomics,’ includes … thremmatology—a word coined for the subjects of variation, heredity, and the breeder’s lore.

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