allotriomorphn.

Brit.

/əˈlɒtrɪə(ʊ)ˌmɔːf/, U.S.

/əˈlɑtriəˌmɔrf/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ἀλλότριος , -morph comb. form.

Etymology: < ancient Greek ἀλλότριος belonging to another (see allotriomorphic adj.) + -morph comb. form, after allotriomorphic adj.

Mineralogy and Metallurgy.

An allotriomorphic (xenomorphic) substance or crystal.

ΘΚΠ

the world > the earth > minerals > mineral structure or appearance > [noun] > crystal structure > specific form

needlestone1805

rose1851

spodiosite1887

rosette1905

sand-barite1906

allotriomorph1914

desert rose1929

rock rose1933

peloid1963

1914 Q. Jrnl. Geol. Soc. 70 140 The orthoclase allotriomorphs (up to 5 mm. in length) are often turbid centrally with decomposition-products, and enclose an occasional granule of kyanite and zircon.

1951 R. F. Mehl in Solidification Metals & Alloys 28/1 Allotriomorphs whose external form is determined either by the containers in which they form or by impingement with other growing crystals.

1971 Proc. Royal Soc. A. 322 197 Below 650 °C a typical upper bainite reaction occurred involving the formation of acicular ferrite, whereas the interphase reaction was associated with grain boundary nucleation of ferrite allotriomorphs.

2001 S. Afr. Archaeol. Bull. 56 101 (table) Pearlite with ferrite, grain boundary allotriomorphs heavily spheroidised with thickened grain boundary carbides.

This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	allotriomorph
释义	allotriomorphn. Brit. /əˈlɒtrɪə(ʊ)ˌmɔːf/, U.S. /əˈlɑtriəˌmɔrf/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ἀλλότριος , -morph comb. form. Etymology: < ancient Greek ἀλλότριος belonging to another (see allotriomorphic adj.) + -morph comb. form, after allotriomorphic adj. Mineralogy and Metallurgy. An allotriomorphic (xenomorphic) substance or crystal. ΘΚΠ the world > the earth > minerals > mineral structure or appearance > [noun] > crystal structure > specific form needlestone1805 rose1851 spodiosite1887 rosette1905 sand-barite1906 allotriomorph1914 desert rose1929 rock rose1933 peloid1963 1914 Q. Jrnl. Geol. Soc. 70 140 The orthoclase allotriomorphs (up to 5 mm. in length) are often turbid centrally with decomposition-products, and enclose an occasional granule of kyanite and zircon. 1951 R. F. Mehl in Solidification Metals & Alloys 28/1 Allotriomorphs whose external form is determined either by the containers in which they form or by impingement with other growing crystals. 1971 Proc. Royal Soc. A. 322 197 Below 650 °C a typical upper bainite reaction occurred involving the formation of acicular ferrite, whereas the interphase reaction was associated with grain boundary nucleation of ferrite allotriomorphs. 2001 S. Afr. Archaeol. Bull. 56 101 (table) Pearlite with ferrite, grain boundary allotriomorphs heavily spheroidised with thickened grain boundary carbides. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1914
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