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单词 downlight
释义

downlightn.

Brit. /ˈdaʊnlʌɪt/, U.S. /ˈdaʊnˌlaɪt/
Origin: Formed within English, by compounding. Etymons: down adv., light n.1
Etymology: < down adv. + light n.1 Compare earlier downlighting n.
A light designed or placed so as to cast illumination downwards, esp. one of a number set in a ceiling; = downlighter n. Cf. uplight n.
ΚΠ
1952 College Art Jrnl. 12 27 Small skylight domes..to control angle of overlapping downlights and eliminate glare in normal line of vision.
1982 Program 1982/83 (Erco trade catal.) 56 Up-lights are the free-standing version of downlights.
1993 Archit. Rev. Jan. 53/2 At night from outside, these ceilings sparkle with a sea of downlights.
2014 M. Steffen Resid. Lighting Design iii. 30/1 Each downlight will light a certain area and these can be planned out to produce a good light across the room.
This entry has been updated (OED Third Edition, December 2018; most recently modified version published online March 2022).
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n.1952
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