| 单词 |
illuminant |
| 释义 |
illuminant, a. and n.|ɪˈl(j)uːmɪnənt|
[ad. L. illuminānt-em, pres. pple. of illūmināre to illuminate.]
A. adj. Lighting up, enlightening.
1677Gale Crt. Gentiles iv. 493 Chrysostom stiles it [divine illumination] the illuminant Intellect. 1886E. Worsdell Gosp. Divine Help viii. (1888) 153 ‘Types’ and sacrifices were ‘a shadow of the good things to come’, and therefore not illuminant of them.
B. n. That which illumines or illuminates; an illuminating or lighting body, substance, or agent; a source of illumination.
In Webster 1864 noted as Obs. but subsequently in common use as a general term for artificial agents of light.
1644Digby Two Treat. i. xiii. (1645) 139 The refraction is made towards the perpendicular drawn from the illuminant to the superficies. 1686Boyle Enq. Notion Nat. iv. 117 The Bodies that are endow'd with it [light]..as the Planets by participation from an External Illuminant. 1875Bedford Sailor's Pocket Bk. v. (ed. 2) 133 The illuminants or combustibles have consisted of animal or vegetable oils. 1882Pall Mall G. 20 Mar. 2/1 The incandescent lamp as a domestic illuminant. 1895Crockett Sweetheart Trav. 232 He carried no illuminant with him except a few lucifer matches. |
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