phase-contrast microscope

phase microscope

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Definitions of phase-contrast microscope words

noun phase-contrast microscope a microscope that utilizes the phase differences of light rays transmitted by different portions of an object to create an image in which the details of the object are distinct despite their near-uniformity of refractive index. 1
noun phase-contrast microscope a microscope that makes visible details of colourless transparent objects. It employs a method of illumination such that small differences of refractive index of the materials in the object cause differences of luminous intensity by interference 0
noun phase-contrast microscope a compound microscope that uses special lenses, diaphragms, etc. to alter slightly the paths of light waves from an object, thus producing a diffraction pattern that allows the viewing of transparent parts 0

before 1945

One of the 6% newest English words

First recorded in 1945-50

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adjective

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exclamation

A common word. It’s meaning is known to most children of preschool age. About 91% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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