单词 | thunder-rod |
释义 | > as lemmasthunder-rod ΘΚΠ the world > action or operation > safety > protection or defence > [noun] > means of protection or defence > device or contrivance to protect a thing or person > lightning conductor lightning rod1770 lightning conductor1773 thunder-rod1784 paratonnerre1821 lightning arrester1852 lightning discharger1853 1784 G. Adams Ess. Electr. ix. 154 When lightning strikes a tree..or a thunder-rod, it is not because these objects are high..but because they communicate with..the surface of the ground. 1824 Mechanic's Mag. 25 Sept. 10 A good kitchen fire has more efficacy in preventing a house from being struck than a whole magazine of thunder~rods. < as lemmas |
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