• synonyms


[sem-ee-i-lips, sem-ahy-]
noun Geometry.
  1. a half ellipse, usually one containing both ends of the major axis.
Show More

Origin of semiellipse

First recorded in 1725–35; semi- + ellipse
Related formssem·i·el·lip·tic [sem-ee-i-lip-tik, sem-ahy-] /ˌsɛm i ɪˈlɪp tɪk, ˌsɛm aɪ-/, sem·i·el·lip·ti·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for semielliptical

Historical Examples

  • The carriage when traveling is supported on semielliptical springs, as is also the carriage limber.

    America's Munitions 1917-1918

    Benedict Crowell

British Dictionary definitions for semielliptical


  1. shaped like one half of an ellipse, esp one divided along the major axis
Show More
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