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American Dictionary of the English Language

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Phenomenon


PHENOM'ENON, noun plural phenomena. [Gr. to appear.]

In a general sense, an appearance; any thing visible; whatever is presented to the eye by observation or experiment, or whatever is discovered to exist; as the phenomena of the natural world; the phenomena of heavenly bodies, or of terrestrial substances; the phenomena of heat or of color. It sometimes denotes a remarkable or unusual appearance.