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单词 rotiform
释义

rotiformadj.

Brit. /ˈrəʊtᵻfɔːm/, U.S. /ˈroʊdəˌfɔrm/
Origin: A borrowing from Latin, combined with an English element. Etymons: Latin rota , -iform comb. form.
Etymology: < classical Latin rota wheel (see rota n.) + -iform comb. form. Compare scientific Latin rotiformis (1824 as a specific name in zoology).
Now rare.
Shaped like a wheel; circular, typically with lines radiating from the centre.
ΚΠ
1816 G. S. Faber Origin Pagan Idolatry III. iii. vi. 158 The Ark, like the Earth, was a floating world, though a world in miniature; and the two were alike typified by the mundane egg, the sacred circle or rotiform inclosure.
1872 Ann. & Mag. Nat. Hist. 10 184 Rotalia ? (Planulina ?) monospira, is a rotiform Pulvinula (?), with a thick marginal wall.
1908 Proc. Geologists' Assoc. 1907–8 20 300 We have alluded to the beautiful little rotiform bryozoon recently described by Dr. Gregory under the name of Bicavea rotaformis.
1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) iv. 116 When increase of size is slow, so that for a given diameter there are many whorls..the resemblance to a cartwheel suggests the term rotiform.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).
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adj.1816
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