Amorphous definition

ə-môrfəs
Lacking organization; formless.
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Lacking physical form or shape.
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Lacking a crystalline structure.

Glass is an amorphous material.

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Without definite form; shapeless.
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Unorganized; vague.
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(biol.) Without definite or specialized structure, as some lower forms of life.
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(chem., mineralogy) Not crystalline.
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Lacking definite form or shape.
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Lacking a definite form or clear shape.

The enormous pile of spaghetti landed on the floor in an amorphous heap.

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Being without definite character or nature.
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Lacking organization or unity.
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(physics) In the non-crystalline solid state of a typically crystalline solid.
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(set theory, of a set) Infinite and not the disjoint union of two infinite subsets.
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The definition of amorphous is something that does not have a distinct form or shape.

A ghostly shadow is an example of an amorphous shadow.

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Of no definite type; anomalous.
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Not made of crystals. Glass, amber, and plastics are amorphous substances.
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Origin of amorphous

  • From Greek amorphos a- without a–1 morphē shape

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

  • From Ancient Greek ἄμορφος (amorphos) "without form, shapeless, deformed" (itself from α- (a-) "without" + μορφή (morphē) "form") + the English suffix -ous

    From Wiktionary