单词 | gilbert |
释义 | † Gilbertn.1 Obsolete. rare. A conventional proper or pet name for a male cat. Cf. puss n.1 and Tom n.1 4. More usually in the pet form gib n.1 ΘΚΠ the world > animals > mammals > group Unguiculata or clawed mammal > family Felidae (feline) > felis domesticus (cat) > [noun] > male Gilbert?a1500 boar-cat1607 ram-cat1672 tomcat1772 tomling1821 Tom1826 a1500 R. Henryson tr. Æsop Fables: Two Mice l. 338 in Poems (1981) 17 So hie scho clam that Gilbert micht not get hir. 1785 F. Grose Classical Dict. Vulgar Tongue Gib cat, a northern name for a he cat, there commonly called Gilbert. This entry has been updated (OED Third Edition, December 2018). gilbertn.2 Physics. Now chiefly historical. The unit of magnetomotive force in the cgs electromagnetic system, equal to the magnetomotive force resulting from the passage of ¼π abamperes through one turn of a coil. Symbol Gb.The equivalent SI unit is the ampere-turn; 1 gilbert is equivalent to 10/4π (approx. 0.796) ampere-turns. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > magnetomotive force > unit of ampere-turn1884 gilbert1891 1891 Electr. Engineer 30 Oct. 419/1 He [Dr. Johnstone Stoney] thought that the natural name for the unit of magnetism would be the Gilbert, he being the first man they could trace who had really studied magnetism. 1893 Trans. Amer. Inst. Electr. Engineers 10 364 The four units—gilbert, weber, oersted and gauss—have been suggested by the Committee of the Institute. 1930 Nature 16 Aug. 252/2 The committee on nomenclature [of the International Electrotechnical Commission]..adopted the following names for the magnetic C.G.S. units... Magnetomotive force... The ‘gilbert’. 1967 Hanbk. Chem. & Physics (ed. 48) F-79 Magnetizing force is measured by the space rate of variation of magnetic potential and as such its unit may be the gilbert per centimeter. 2004 R. E. Krebs Groundbreaking Sci. Exper., Inventions, & Discov. Middle Ages & Renaissance vi. 168 In modern physics a single unit of electromotive force is called the Gilbert (Gb) after William Gilbert. This entry has been updated (OED Third Edition, December 2018; most recently modified version published online March 2022). < n.1?a1500n.21891 |
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