v. nonce-wd. [f. CONCRETE a. + -IZE.] trans. To render concrete.

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  Hence Concretizing ppl. a.

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1884.  Athenæum, 16 Feb., 209/1. Details of interest are used to concretize … the general laws of development. Ibid., 23 Feb., 241/2. This passage … lacks the concretizing touch.

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