merohedryn.

Brit.

/ˌmɛrə(ʊ)ˈhiːdri/, U.S.

/ˌmɛroʊˈhidri/

Origin: Formed within English, by compounding. Etymons: mero- comb. form¹, -hedry comb. form.

Etymology: < mero- comb. form¹ + -hedry comb. form. Compare earlier merohedrism n., and merohedral adj., merohedric adj.

Crystallography.

= merohedrism n.

ΚΠ

1959 Amer. Mineralogist 44 1067 [The geometrical relationship between two crystals] may usually be expressed by any one of several possible twin operations, which (as is well known) are all the symmetry operations that are deficient in the merohedral crystal symmetry but are present in the next-higher merohedry.

1980 Proc. National Acad. Sci. U.S.A. 77 278/2 This behavior suggests that the crystals suffer from twinning by merohedry about the a₃ axis.

1998 Amer. Mineralogist 83 631 The crystal showed twinning by merohedry according to m₂₁₀, which was accounted for in the calculations.

This is a new entry (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	merohedry
释义	merohedryn. Brit. /ˌmɛrə(ʊ)ˈhiːdri/, U.S. /ˌmɛroʊˈhidri/ Origin: Formed within English, by compounding. Etymons: mero- comb. form¹, -hedry comb. form. Etymology: < mero- comb. form¹ + -hedry comb. form. Compare earlier merohedrism n., and merohedral adj., merohedric adj. Crystallography. = merohedrism n. ΚΠ 1959 Amer. Mineralogist 44 1067 [The geometrical relationship between two crystals] may usually be expressed by any one of several possible twin operations, which (as is well known) are all the symmetry operations that are deficient in the merohedral crystal symmetry but are present in the next-higher merohedry. 1980 Proc. National Acad. Sci. U.S.A. 77 278/2 This behavior suggests that the crystals suffer from twinning by merohedry about the a₃ axis. 1998 Amer. Mineralogist 83 631 The crystal showed twinning by merohedry according to m₂₁₀, which was accounted for in the calculations. This is a new entry (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1959
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