单词 | cathetometer |
释义 | cathetometer/ˌkaθɪˈtɒmɪtə /noun A telescope mounted on a graduated scale, used for accurate measurement of small vertical distances.The vertical drops can be determined with a cathetometer even when someone else is gathering data with the apparatus....
OriginMid 19th century: from Latin cathetus (from Greek kathetos 'perpendicular line', from kathienai 'send or let down') + -meter. |
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