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单词 septariiform
释义

septariiformadj.

Origin: Formed within English, by compounding. Etymons: septarium n., -iform comb. form.
Etymology: < septari- (in septarium n.) + -iform comb. form.J. W. Dawson used this word to describe a structure similar to that of septaria, with mineral-filled cracks separating fragments or areolae of serpentine, perhaps suggesting lumps or curds.
Geology. Obsolete.
In the terminology of J. W. Dawson: designating serpentine (serpentine n. 3) having a structure subdivided by mineral-filled partitions.
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the world > the earth > structure of the earth > constituent materials > stone > a stone > [adjective] > concretionary or modular > septarium
septarian1829
septariate1829
septariiform1867
1867 J. W. Dawson in Q. Jrnl. Geol. Soc. 23 i. 260 (note) I use the term ‘septariiform’ to denote the curved [1875 curdled] appearance so often presented by the Laurentian serpentine.
1888 J. W. Dawson On Specimens Eozoon Canadense 45 Specimens from Long Lake, in the collection of the Geological Survey of Canada, exhibit white crystalline limestone with light-green compact or septariiform serpentine.
This entry has been updated (OED Third Edition, September 2020).
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adj.1867
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