Phenomenon definition

fĭ-nŏmə-nŏn, -nən
Any extremely unusual or extraordinary thing or occurrence.
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(informal) A person with an extraordinary quality, aptitude, etc.; prodigy.
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An occurrence, circumstance, or fact that is perceptible by the senses.
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(philosophy) In the philosophy of Kant, an object as it is perceived by the senses, as opposed to a noumenon.
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The definition of a phenomenon is something that is observable or an extraordinary thing or person.

An example of phenomenon is a lunar eclipse.

An example of phenomenon is a classical musical great such as Beethoven.

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An unusual, significant, or unaccountable fact or occurrence; a marvel.
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An observable fact or occurrence or a kind of observable fact or occurrence.
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Appearance; a perceptible aspect of something that is mutable.
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A fact or event considered very unusual, curious, or astonishing by those who witness it.
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A wonderful or very remarkable person or thing.
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(philosophy, chiefly Kantian idealism) An experienced object whose constitution reflects the order and conceptual structure imposed upon it by the human mind (especially by the powers of perception and understanding).
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In Kantian philosophy, a thing as it appears in perception as distinguished from the thing as it is in itself independent of sense experience.
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Any event, circumstance, or experience that is apparent to the senses and that can be scientifically described or appraised, as an eclipse.
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(physics) An observable event.
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A remarkable or outstanding person; a paragon.
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Other Word Forms

Noun

Singular:
phenomenon
Plural:
phenomena

Origin of phenomenon

  • Late Latin phaenomenon from Greek phainomenon from neuter present participle of phainesthai to appear bhā-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin phaenomenon (“appearance"), from Ancient Greek φαινόμενον (phainomenon, “thing appearing to view"), neuter present passive participle of φαίνω (phainō, “I show").

    From Wiktionary