英语词汇“ellipsoid”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

ellipsoid

释义

ellipsoid|ɛˈlɪpsɔɪd|
[f. ellipse + -oid.]
A. n.
1. A solid of which all the plane sections through one of the axes are ellipses, and all other sections ellipses or circles. Formerly in narrower sense: A solid generated by the revolution of an ellipse round one of its axes; now called ellipsoid of revolution.
a1721J. Keill tr. Maupertuis' Diss. (1734) 7 The Earth must be an Ellipsoid whose Equatorial Diameter is to its Axis as √289 to √288.1787Phil. Trans. LXXVII 202 Ellipsoids of different degrees of oblateness.1831Brewster Optics vi. 55 A meniscus whose convex surface is part of an ellipsoid.1871B. Stewart Heat §281 The isothermal surfaces are ellipsoids.1879C. Niven (title) On the Conduction of Heat in Ellipsoids of Revolution.
2. ? A figure approximately elliptical.
1837Whewell Hist. Induc. Sc. (1857) II. 59 An eccentric ellipsoid; that is a figure resembling an ellipse.
B. adj. = next.
1861Hulme tr. Moquin-Tandon ii. vi. i. 313 The eggs..are ellipsoid or oval.1870Hooker Stud. Flora 142 Styles erect or spreading, pollen ellipsoid.

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