catoptrics
/kəˈtɒptrɪks/plural noun
treated as sing.
- Physics the branch of optics that deals with reflection【物理】反射光学。
词源
mid 16th cent. (originally catoptric): from Greek katoptrikos 'reflecting', from katoptron 'mirror'.
单词 | catoptrics |
释义 | catoptrics/kəˈtɒptrɪks/plural noun treated as sing.
词源 mid 16th cent. (originally catoptric): from Greek katoptrikos 'reflecting', from katoptron 'mirror'. |
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