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spheroid

American  
[sfeer-oid] / ˈsfɪər ɔɪd /

noun

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


adjective

  1. spheroidal.

spheroid British  
/ ˈsfɪərɔɪd /

noun

  1. maths another name for ellipsoid of revolution

"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

adjective

  1. 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
spheroid Scientific  
/ sfîroid′ /
  1. A three-dimensional geometric surface generated by rotating an ellipse on or about one of its axes.


Etymology

Origin of spheroid

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

Vocabulary lists containing spheroid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Although tested in monkeys, it is worth noting that the cardiac spheroid production protocol used in this study was designed for clinical application in humans.

From Science Daily • Apr. 26, 2024

But because the earth is an oblate spheroid, the sea level at the Equator is some 14 miles farther from the center of the earth than the sea level at the North Pole.

From Scientific American • Feb. 1, 2023

Texas, West Texas and Texas Tech surely reserve their foremost excitement for when the ball is a prolate spheroid.

From Washington Post • Apr. 5, 2019

The eye cornea is approximated as a prolate spheroid with an axis that is the eye, where a = 8.7 mm and c = 9.6 mm.

From Textbooks • Mar. 30, 2016

Never mind that James Hutton had shown long before that any such static arrangement would eventually result in a featureless spheroid as erosion leveled the bumps and filled in the divots.

From "A Short History of Nearly Everything" by Bill Bryson