unmicaceousadj.

Brit.

/(ˌ)ʌnmʌɪˈkeɪʃəs/, U.S.

/ˌənˌmaɪˈkeɪʃəs/

Origin: Formed within English, by derivation. Etymons: un- prefix¹, micaceous adj.

Etymology: < un- prefix¹ + micaceous adj.

Geology. Now rare.

Not micaceous.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > mica > not

unmicaceous1829

the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [adjective] > mica > not

unmicaceous1829

1829 Trans. Geol. Soc. 2nd Ser. 3 16 This conclusion will hardly apply to the unmicaceous slate rocks.

1952 Ann. Brit. School Athens 47 4 The clay of the Eretrian examples is distinctly unmicaceous.

2011 Earth-Sci. Rev. 106 281/2 The unmicaceous Chogdo Formation Tar Group.

This entry has been updated (OED Third Edition, December 2014; most recently modified version published online March 2022).

单词	unmicaceous
释义	unmicaceousadj. Brit. /(ˌ)ʌnmʌɪˈkeɪʃəs/, U.S. /ˌənˌmaɪˈkeɪʃəs/ Origin: Formed within English, by derivation. Etymons: un- prefix¹, micaceous adj. Etymology: < un- prefix¹ + micaceous adj. Geology. Now rare. Not micaceous. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > mica > not unmicaceous1829 the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [adjective] > mica > not unmicaceous1829 1829 Trans. Geol. Soc. 2nd Ser. 3 16 This conclusion will hardly apply to the unmicaceous slate rocks. 1952 Ann. Brit. School Athens 47 4 The clay of the Eretrian examples is distinctly unmicaceous. 2011 Earth-Sci. Rev. 106 281/2 The unmicaceous Chogdo Formation Tar Group. This entry has been updated (OED Third Edition, December 2014; most recently modified version published online March 2022). < adj.1829
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