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Noun1.sun-ray - a ray of artificial ultraviolet light from a sunray lamp
ultraviolet, ultraviolet illumination, ultraviolet light, ultraviolet radiation, UV - radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
References in classic literature ?
That eve - that eve - I should remember well - The sun-ray dropp'd, in Lemnos, with a spell On th'Arabesque carving of a gilded hall Wherein I sate, and on the draperied wall - And on my eye-lids - O the heavy light !