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idiomorphic

American  
[id-ee-uh-mawr-fik] / ˌɪd i əˈmɔr fɪk /

adjective

  1. Also (in a rock) noting or pertaining to a mineral constituent having its own characteristic outward crystalline form unaltered by the other constituents of the rock; automorphic.

  2. having its own characteristic form.


idiomorphic British  
/ ˌɪdɪəʊˈmɔːfɪk /

adjective

  1. (of minerals) occurring naturally in the form of well-developed crystals

"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

Other Word Forms

Etymology

Origin of idiomorphic

1885–90; < Greek idiómorph ( os ) having an individual form ( see idio-, -morphous) + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Nabokov's treatment of these themes is idiomorphic; his form is flashingly and immutably his own.

From Time Magazine Archive

Typical nepheline-dolerites are scarce, and consist of idiomorphic augite, surrounded by nepheline.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" by Various

The last of these minerals occurs in small irregular patches between the idiomorphic felspars which Dr J. J. H. Tean has found to be a soda orthoclase.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

Many felsites contain porphyritic crystals of clear quartz in rounded blebs, more or less idiomorphic felspar, and occasionally biotite.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" by Various

The augite is mostly a variety of diopside and is only occasionally idiomorphic.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" by Various

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