- a half ellipse, usually one containing both ends of the major axis.
Origin of semiellipse
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for semielliptical
The carriage when traveling is supported on semielliptical springs, as is also the carriage limber.America's Munitions 1917-1918
- shaped like one half of an ellipse, esp one divided along the major axis