ellipsoid

名词 n. 形容词 adj.
中文释义
英 /ɪˈlɪp.sɔɪd/    美 /ɪˈlɪp.sɔɪd/|/əˈlɪp.sɔɪd/|/iˈlɪp.sɔɪd/|/əˈlɪp.soɪd/|/ɪˈlɪp.soɪd/

英文释义

名词 n.
  1. A surface, all of whose cross sections are elliptic or circular (including the sphere), that generalises the ellipse and in Cartesian coordinates (x, y, z) is a quadric with equation x²/a² + y²/b² + z²/c² = 1.
    — Polarizability can be imagined as a three-dimensional ellipsoid centred on the centre of the molecule, as shown in Figure 10.4.
  2. Such a surface used as a model of the shape of the earth.
    — Here the geoid is thirty meters below the ellipsoid.
形容词 adj.
  1. Shaped like an ellipse; elliptical.
  2. Of or pertaining to an ellipse; elliptic.
  3. Having the tridimensional shape of an ellipse rotated on its long axis.

词形变化

ellipsoids plural more ellipsoid comparative most ellipsoid superlative

词汇关系

上位词
quadric surface quadric
衍生词
Bessel ellipsoid ellipsoid geodesic ellipsoid method ellipsoid of revolution ellipsoid packing Hayford ellipsoid hemiellipsoid hyperellipsoid Jacobi ellipsoid scalene ellipsoid triaxial ellipsoid
相关词
ellipsoidal subellipsoid geoid globoid ovoid globose oblong

词源

词源 1
Etymology tree
English ellipse
Ancient Greek -ο- (-o-)der.
Latin -o-
Proto-Indo-European *weyd-
Proto-Indo-European *-os
Proto-Indo-European *wéydos
Proto-Hellenic *wéidos
Ancient Greek εἶδος (eîdos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -ειδής (-eidḗs)
Latin -oīdēslbor.
English -oid
English ellipsoid
From ellipse + -oid.
词源 2
Etymology tree
English ellipse
Ancient Greek -ο- (-o-)der.
Latin -o-
Proto-Indo-European *weyd-
Proto-Indo-European *-os
Proto-Indo-European *wéydos
Proto-Hellenic *wéidos
Ancient Greek εἶδος (eîdos)
Proto-Indo-European *-os
Proto-Indo-European *-ēs
Ancient Greek -ης (-ēs)
Ancient Greek -ειδής (-eidḗs)
Latin -oīdēslbor.
English -oid
English ellipsoid
From ellipse + -oid.
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