simaspheren.

Brit.

/ˈsʌɪməsfɪə/, U.S.

/ˈsaɪməˌsfɪ(ə)r/

Origin: Formed within English, by compounding; probably modelled on a German lexical item. Etymons: sima n., sphere n.

Etymology: < sima n. + sphere n., probably after German Simasphäre (A. Wegener, 1920 or earlier).

Geology. rare.

The lower part of the earth's crust. Cf. sima n. 1.

ΚΠ

1924 J. G. A. Skerl tr. A. Wegener Orig. Continents & Oceans 131 The simasphere [Ger. das Sima] is about 10,000 times as rigid as sealing-wax at the temperature of a room.

1996 Field Trip Guide: 30th Internat. Geol. Congr. III. T329.1 The upper mantle and basement faults cutting into the sialsphere and simasphere in this region controlled the development of the Mesozoic basins and felsic magmatism.

This entry has been updated (OED Third Edition, September 2019; most recently modified version published online March 2022).

单词	simasphere
释义	simaspheren. Brit. /ˈsʌɪməsfɪə/, U.S. /ˈsaɪməˌsfɪ(ə)r/ Origin: Formed within English, by compounding; probably modelled on a German lexical item. Etymons: sima n., sphere n. Etymology: < sima n. + sphere n., probably after German Simasphäre (A. Wegener, 1920 or earlier). Geology. rare. The lower part of the earth's crust. Cf. sima n. 1. ΚΠ 1924 J. G. A. Skerl tr. A. Wegener Orig. Continents & Oceans 131 The simasphere [Ger. das Sima] is about 10,000 times as rigid as sealing-wax at the temperature of a room. 1996 Field Trip Guide: 30th Internat. Geol. Congr. III. T329.1 The upper mantle and basement faults cutting into the sialsphere and simasphere in this region controlled the development of the Mesozoic basins and felsic magmatism. This entry has been updated (OED Third Edition, September 2019; most recently modified version published online March 2022). < n.1924
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