ppl. a. (UN-1 8, 5 b.)

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a. 1676.  Hale, Prim. Orig. Man. (1677), 303. To distribute this Light … which unrefracted might have been too … violent to the other parts of Nature.

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1728.  Chambers, Cycl., s.v. Refraction, The perpendicular Ray … will pass unrefracted to K.

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1796.  Coleridge, Destiny of Nations, 463. Whether thy Love with unrefracted ray Beam on the Prophet’s purged eye.

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1862.  R. H. Patterson, Ess. Hist. & Art, 83. The purity and brilliance of unrefracted light.

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