“ocellar”的英文意思_释义_用法

单词

ocellar

释义

ocellar, a.|əʊˈsɛlə(r)|
[f. L. ocell-us + -ar¹.]
1. Of or pertaining to the ocelli or small simple eyes of insects or other Arthropoda.
1891Cent. Dict., Ocellar triangle, a three-sided space, sharply defined in many insects, on which the ocelli are placed.
2. In Petrography, applied (after Rosenbusch 1887) to that structure of rocks in which minute individual components of one mineral are arranged in radiating aggregations round another mineral.
(Many authors regard the ‘ocellar’ structure as simply a variety of the ‘centric’ structure of Becke, 1878).
1889Judd in Q. Jrnl. Geol. Soc. May 176 The structures which specially distinguish these granophyric rocks are..the centric or ocellar structure..and the drusy or miarolitic structures.

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