单词 | terrella |
释义 | terrellan. 1. A little Earth; a small orb or planet. Now rare. ΘΚΠ the world > the universe > planet > [noun] > small terrell1619 terrella1682 planetkin1813 planetule1836 1682 H. More Annot. Lux Orientalis 141, in Two Choice & Useful Treat. I should rather suspect..that the Fire will more and more decay till it turn at last to a kind of Terrella, like that observed within the Ring of Saturn. 1682 H. More Annot. Lux Orientalis 142 in Two Choice & Useful Treat. To let its Central Fire to incrustate it self into a Terrella. a1706 J. Evelyn Hist. Relig. (1850) I. ii. 162 Only signifying His making greater worlds, and not these microcosm terrellas. 1959 Daily Tel. 23 Feb. 11/8 Col. Steinkamp used the word ‘terrella’—a little world or earth—in the context of space flight. ΘΚΠ the world > matter > physics > electromagnetic radiation > magnetism > magnetic devices or materials > [noun] > a magnet > of specific shape terrella1613 horseshoe magnet1785 bar magnet1821 U-magnet1888 1613 M. Ridley Short Treat. Magneticall Bodies 4 The first form of the Magnet..is a large one in fashion of a round ball, boule or globe, and we do call it a Terrella. 1646 Sir T. Browne Pseudodoxia Epidemica 62 The Terrella or sphericall magnet geographically set out with circles of the Globe. View more context for this quotation 1773 Lorimer in Philos. Trans. (Royal Soc.) 65 79 Whenever any one meets with a terrella, or spherical loadstone, the first thing he does is to find out its poles. 1822 T. Webster Imison's Elem. Sci. & Art (new ed.) I. 405 A small globe, having a magnet enclosed within it, which..is called a terrella. 1837 D. Brewster Treat. Magnetism 304 Shape it..so as to give it any form.., whether of a terrella,..or any other. This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2019). < n.1613 |
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