mesostasisn.

Brit.

/mᵻˈsɒstəsɪs/, U.S.

/məˈzɑstəsəs/; see also meso- comb. form.

Inflections: Plural mesostases Brit.

/mᵻˈsɒstəsiːz/, U.S.

/məˈzɑstəsiz/.

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

Etymology: < meso- comb. form + ancient Greek στάσις (see stasis n.).

Geology.

The most recently formed interstitial substance (whether glassy or cryptocrystalline) in an igneous rock.

ΚΠ

1888 Nature 15 Mar. 459/2 The presence of a hypocrystalline interstitial substance (mesostasis) wedged in between the felspars.

1924 H. H. Thomas & E. B. Bailey in E. B. Bailey et al. Tertiary & Post-Tertiary Geol. Mull xxv. 280 The distinction between ground-mass and mesostasis is of necessity arbitrary, and..in typical intersertal structure, the mesostasis has a patchy distribution.

1967 Science 2 June 1224/2 Much troilite and some kamacite became dispersed as minute particles throughout the chondrules and interchondrule mesostasis.

1999 Lithos 46 715 These variations have been linked to the cryptocrystallisation of leucite in glassy mesostases, which affected the original melt compositions just before and during the eruptive event.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesostasis
释义	mesostasisn. Brit. /mᵻˈsɒstəsɪs/, U.S. /məˈzɑstəsəs/; see also meso- comb. form. Inflections: Plural mesostases Brit. /mᵻˈsɒstəsiːz/, U.S. /məˈzɑstəsiz/. Origin: A borrowing from Greek, combined with an English element. Etymons: meso- comb. form, Greek στάσις. Etymology: < meso- comb. form + ancient Greek στάσις (see stasis n.). Geology. The most recently formed interstitial substance (whether glassy or cryptocrystalline) in an igneous rock. ΚΠ 1888 Nature 15 Mar. 459/2 The presence of a hypocrystalline interstitial substance (mesostasis) wedged in between the felspars. 1924 H. H. Thomas & E. B. Bailey in E. B. Bailey et al. Tertiary & Post-Tertiary Geol. Mull xxv. 280 The distinction between ground-mass and mesostasis is of necessity arbitrary, and..in typical intersertal structure, the mesostasis has a patchy distribution. 1967 Science 2 June 1224/2 Much troilite and some kamacite became dispersed as minute particles throughout the chondrules and interchondrule mesostasis. 1999 Lithos 46 715 These variations have been linked to the cryptocrystallisation of leucite in glassy mesostases, which affected the original melt compositions just before and during the eruptive event. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1888
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