illumination : Idioms & Phrases
Index
dark field illumination
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noun a form of microscopic examination of living material by scattered light; specimens appear luminous against a dark background
dark field illumination.
WordNet
dark ground illumination
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noun a form of microscopic examination of living material by scattered light; specimens appear luminous against a dark background
dark field illumination.
WordNet
illumination unit
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noun a measure of illumination
WordNet
source of illumination
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noun any device serving as a source of visible electromagnetic radiation
WordNet
ultraviolet illumination
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noun radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
ultraviolet radiation; ultraviolet; UV; ultraviolet light.
WordNet
Unit of illumination
- the light of a sperm candle burning 120 grains per hour. Standard gas, burning at the rate of five cubic feet per hour, must have an illuminating power equal to that of fourteen such candles.
