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Webster 1913 Edition


Spheroid

Sphe′roid

,
Noun.
[L.
spheroides
ball-like, spherical, Gr. [GREEK][GREEK][GREEK]; [GREEK][GREEK][GREEK][GREEK] sphere +
εἶδοσ
form: cf. F.
sphéroïde
.]
A body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes.
Oblate spheroid
,
Prolate spheroid
.

Webster 1828 Edition


Spheroid

SPHEROID

,
Noun.
[sphere and form.] A body or figure approaching to a sphere, but not perfectly spherical. A spheroid is oblate or prolate. The earth is found to be a oblate spheroid, that is, flatted at the poles, whereas some astronomers formerly supposed it to be prolate or oblong.

Definition 2024


spheroid

spheroid

English

Alternative forms

Adjective

spheroid (comparative more spheroid, superlative most spheroid)

  1. Of a shape similar to a squashed sphere.

Noun

spheroid (plural spheroids)

  1. A solid of revolution generated by rotating an ellipse about its major (prolate), or minor (oblate) axis.
    UFOs are reported as being either oblate (saucer-shaped) or prolate (cigar-shaped) spheroids.

Hyponyms

  • oblate spheroid
  • prolate spheroid

Translations

References