单词 |
cathetal |
释义 |
cathetal, a.|ˈkæθɪtəl| Also k-. [f. cathetus + -al1.] Pertaining to a cathetus; perpendicular.
1874tr. Lommel's Light 64 The rays which fall perpendicularly upon the kathetal surface pass without deflection through the glass. 1880Webster Supp. |

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