[kris-tl-in, -ahyn, -een]


of or like crystal; clear; transparent.
formed by crystallization.
composed of crystals.
pertaining to crystals or their formation.

Origin of crystalline

1350–1400; Middle English cristal(l)yn(e) < Latin crystallinus < Greek krystállinos. See crystal, -ine1
Related formscrys·tal·lin·i·ty [kris-tl-in-i-tee] /ˌkrɪs tlˈɪn ɪ ti/, nounmul·ti·crys·tal·line, adjectivenon·crys·tal·line, adjectivepre·crys·tal·line, adjectivepseu·do·crys·tal·line, adjectivesub·crys·tal·line, adjectiveun·crys·tal·line, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for non-crystalline

Historical Examples of non-crystalline

  • It occurs both in a crystalline and amorphous form, the latter, or non-crystalline kind, being extensively used for lead-pencils.


    James Geikie

  • Small globules appear (globulites), spherical and non-crystalline (so far as can be ascertained).

  • Carbon in the organic world, where it plays such an important part, is non-crystalline.

    The Breath of Life

    John Burroughs

  • Its characteristic flocculent, non-crystalline nature is plainly evident when examined under the microscope.

  • The plates do become sulphated, but the sulphate remains in the porous, non-crystalline state in which it forms.

British Dictionary definitions for non-crystalline



having the characteristics or structure of crystals
consisting of or containing crystals
made of or like crystal; transparent; clear
Derived Formscrystallinity (ˌkrɪstəˈlɪnɪtɪ), noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for non-crystalline



late 14c., from Old French cristalin "like crystal" (Modern French crystallin), from Latin crystallinus, from Greek krystallinos "of crystal," from krystallos (see crystal).

Online Etymology Dictionary, © 2010 Douglas Harper

non-crystalline in Medicine


[krĭstə-lĭn, -līn′, -lēn′]


Being, relating to, or composed of crystal or crystals.
Resembling crystal, as in transparency or distinctness of structure or outline.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.