单词 | Pointolite |
释义 | Pointolite/ˈpɔɪntəlʌɪt/noun A type of arc lamp designed to give a small but bright source of light (especially for use in projection equipment), the illumination being provided by the incandescence of a small knob of tungsten.
OriginEarly 20th century; earliest use found in Illuminating Engineer. From point + o', variant of of + lite. |
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