Illuminator
The Optical Dictionary · 1904 · p. 10
A lens or mirror for concentrating the light in an optical apparatus.
Bu kavram başka kaynaklarda da geçiyor
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
Chamber's Etymological of the English Language (1895)
An Illustrated Encyclopedic Medical Dictionary (1893)
Nuttall's Standard Dictionary of the English Language (1890)
The Century Dictionary: The Encyelopedic Lexicon of the English Language (1887)
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