| ell | (noun) an extension at the end and at right angles to the main building | - |
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| ellipse | (noun) a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it | Synonyms: oval |
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| ellipsis | (noun) omission or suppression of parts of words or sentences | Synonyms: eclipsis |
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| ellipsoid | (noun) a surface whose plane sections are all ellipses or circles | - |
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| ellipticity | (noun) the property possessed by a round shape that is flattened at the poles | Synonyms: oblateness |
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| ellwand | (noun) a rod an ell long, used for official measurement. | Synonyms: ell-wand |
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