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semiellipse

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

noun

, Geometry.
  1. a half ellipse, usually one containing both ends of the major axis.

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Other Words From

  • sem·i·el·lip·tic [sem-ee-i-, lip, -tik, sem-ahy-], semi·el·lipti·cal adjective

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Word History and Origins

Origin of semiellipse1

First recorded in 1725–35; semi- + ellipse

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