idiomorphicadj.

Brit.

/ˌɪdɪə(ʊ)ˈmɔːfɪk/, U.S.

/ˌɪdioʊˈmɔrfɪk/

Origin: Formed within English, by compounding; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: idio- comb. form, -morphic comb. form.

Etymology: < idio- comb. form + -morphic comb. form, after German idiomorph (1843 or earlier) or its apparent model French idiomorphe (1814 or earlier). Compare Hellenistic Greek ιδιόμορϕος of peculiar form. Compare slightly later idiomorphism n.

Mineralogy.

Of a mineral constituent in a rock: having its own characteristic crystal form.

ΘΚΠ

the world > the earth > minerals > mineral structure or appearance > [adjective] > crystalline > specific crystal

idiomorphic1887

automorphic1888

hypidiomorphic1888

euhedral1906

idioblastic1908

peloidal1933

the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [adjective] > idiomorphic

idiomorphic1887

automorphic1888

euhedral1906

1887 Geol. Mag. Mar. 123 The normal plutonic rocks are characterized by a structure in which idiomorphic constituents occur only in small proportion.

1888 W. S. Bayley in Amer. Naturalist Mar. 208 An idiomorphic mineral is one whose form is determined by the crystallizing forces acting within itself. An idiomorphic mineral is bounded by crystal planes.

1946 V. N. Wood Metall. Materials iii. 95 Crystals of definite geometric shape are known as idiomorphic crystals.

1972 Mineral Abstr. 23 316/1 Moncheite and michenerite occur as disseminations between sulphides and rock-forming silicates and as idiomorphic grains.

2002 Palaios 17 105/2 Initial iron sulfide precipitation led to rounded fine crystalline bodies that subsequently were overgrown by successive rims of idiomorphic iron sulfide.

Derivatives

idioˈmorphically adv.

ΚΠ

1888 W. S. Bayley in Amer. Naturalist Mar. 209 When..all of the constituents are idiomorphically developed, the rock is panidiomorphic.

1960 Jrnl. Paleontol. 34 900/2 The external and internal boundaries are smooth and rounded, and are not idiomorphically embayed by crystal grains of the mosaic.

2008 Precambrian Res. 160 259/2 Zircon crystals from CK276 are dominantly euhedral and transparent... All grains have thick idiomorphically zoned rims.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	idiomorphic
释义	idiomorphicadj. Brit. /ˌɪdɪə(ʊ)ˈmɔːfɪk/, U.S. /ˌɪdioʊˈmɔrfɪk/ Origin: Formed within English, by compounding; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: idio- comb. form, -morphic comb. form. Etymology: < idio- comb. form + -morphic comb. form, after German idiomorph (1843 or earlier) or its apparent model French idiomorphe (1814 or earlier). Compare Hellenistic Greek ιδιόμορϕος of peculiar form. Compare slightly later idiomorphism n. Mineralogy. Of a mineral constituent in a rock: having its own characteristic crystal form. ΘΚΠ the world > the earth > minerals > mineral structure or appearance > [adjective] > crystalline > specific crystal idiomorphic1887 automorphic1888 hypidiomorphic1888 euhedral1906 idioblastic1908 peloidal1933 the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [adjective] > idiomorphic idiomorphic1887 automorphic1888 euhedral1906 1887 Geol. Mag. Mar. 123 The normal plutonic rocks are characterized by a structure in which idiomorphic constituents occur only in small proportion. 1888 W. S. Bayley in Amer. Naturalist Mar. 208 An idiomorphic mineral is one whose form is determined by the crystallizing forces acting within itself. An idiomorphic mineral is bounded by crystal planes. 1946 V. N. Wood Metall. Materials iii. 95 Crystals of definite geometric shape are known as idiomorphic crystals. 1972 Mineral Abstr. 23 316/1 Moncheite and michenerite occur as disseminations between sulphides and rock-forming silicates and as idiomorphic grains. 2002 Palaios 17 105/2 Initial iron sulfide precipitation led to rounded fine crystalline bodies that subsequently were overgrown by successive rims of idiomorphic iron sulfide. Derivatives idioˈmorphically adv. ΚΠ 1888 W. S. Bayley in Amer. Naturalist Mar. 209 When..all of the constituents are idiomorphically developed, the rock is panidiomorphic. 1960 Jrnl. Paleontol. 34 900/2 The external and internal boundaries are smooth and rounded, and are not idiomorphically embayed by crystal grains of the mosaic. 2008 Precambrian Res. 160 259/2 Zircon crystals from CK276 are dominantly euhedral and transparent... All grains have thick idiomorphically zoned rims. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < adj.1887
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