a. [f. SUN sb. + PROOF a.] Proof against the sun; through which the sunlight cannot penetrate; unaffected by the rays of the sun.

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1606.  Marston, Sophonisba, IV. i. Fj. Thick armes Of darksom Ewe [= yew] (Sun proofe).

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1711.  Golding, Spect., No. 250, ¶ 2. The Sun-Proof Eye … without blinking at the Lustre of Beauty, can distribute an Eye of proper Complaisance to a Room crowded with Company.

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c. 1820.  S. Rogers, Italy, Campagna Florence, 24. In the shade Of many a tree sun-proof.

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1899.  Daily Tel., 21 Aug., 7/7. Grey sun-proof vapours.

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