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单词 quartzless
释义

quartzlessadj.

Brit. /ˈkwɔːtslᵻs/, U.S. /ˈkwɔrtslᵻs/
Origin: Formed within English, by derivation. Etymons: quartz n., -less suffix.
Etymology: < quartz n. + -less suffix.
Geology.
Lacking or free from quartz.
ΚΠ
1871 Amer. Jrnl. Sci. 101 83 The same process with micaceous granites affords a quartzless rock, consisting of orthoclase and mica, for which we have no name.
1945 Proc. Amer. Philos. Soc. 89 153/1 In the collection are quartz, quartzless, and other types of dolerites.
1991 F. H. Pough Peterson First Guide Rocks & Minerals 18 The resulting rock may be a quartzless feldspar rock known as syenite.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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adj.1871
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