| Word | Definitions | Synonyms |
|---|---|---|
| ellipse | (noun) a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it | Synonyms: oval |
| ellipsis | (noun) omission or suppression of parts of words or sentences | Synonyms: eclipsis |
| ellipsoid | (noun) a surface whose plane sections are all ellipses or circles | - |
| ellipticity | (noun) the property possessed by a round shape that is flattened at the poles | Synonyms: oblateness |