semiellipse

[sem-ee-i-lips, sem-ahy-]

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