- A dictionary of medical eponyms

Mach's band

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This optical delusion is the tendency of the human eye to see bright or dark bands near the boundaries between areas of sharply differing illumination, for example between areas of varying density in an x-ray picture. There is still discussion concerning its physical basis of this phenomenon.

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An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

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