spheroid

[sfeer-oid]Geometry

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noun

a solid geometrical figure similar in shape to a sphere, as an ellipsoid.

adjective

spheroidal.

Origin of spheroid

1655–65; < Latin sphaeroīdēs < Greek sphairoeidḗs. See sphere, -oid

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for spheroid

spherical, rounded, cylindrical, elliptical, oval, curved, bulbous, planet, world, map, bowed, looped, arched, spiral, circular, arced, bent, ringed, coiled, oblique

Examples from the Web for spheroid

Historical Examples of spheroid

Indignantly he had taken his calculations, his blue prints of the spheroid, along with him.
Slaves of Mercury
Nat Schachner
Its shape is not absolutely spherical, but spheroid—that is, flattened at the poles.
Astronomy for Amateurs
Camille Flammarion
The spheroid went to the side, sailing low, and out of bounds.
A Quarter-Back's Pluck
Lester Chadwick
There was a futile attempt to block the kick, but the spheroid sailed over the bar.
A Quarter-Back's Pluck
Lester Chadwick
The earth is a spheroid, and hence it pulls and is pulled by the moon with a slightly uncentric attraction.
Pioneers of Science
Oliver Lodge

British Dictionary definitions for spheroid

spheroid

noun

maths another name for ellipsoid of revolution

adjective

shaped like but not exactly a sphere

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for spheroid

1660s, from Latin sphaeroides, from Greek sphairoeides, from sphaira (see sphere) + -oeides "form" (see -oid).

spheroid in Medicine