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ellipse 音標拼音: [ɪl'ɪps] n. 橢圓形,橢圓,
n. 橢圓 橢圓形,橢圓,橢圓 ellipse橢圖形 ellipse n 1: a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it; " the sums of the distances from the foci to any point on an ellipse is constant" [ synonym: { ellipse}, { oval}] Ellipse \ El* lipse"\ ([ e^] l* l[ i^] ps"), n. [ Gr. ' e` lleipsis, prop., a defect, the inclination of the ellipse to the base of the cone being in defect when compared with that of the side to the base: cf. F. ellipse. See { Ellipsis}.] 1. ( Geom.) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique projection of a circle, or an oblique section of a cone through its opposite sides. The greatest diameter of the ellipse is the major axis, and the least diameter is the minor axis. See { Conic section}, under { Conic}, and cf. { Focus}. [ 1913 Webster] 2. ( Gram.) Omission. See { Ellipsis}. [ 1913 Webster] 3. The elliptical orbit of a planet. [ 1913 Webster] The Sun flies forward to his brother Sun; The dark Earth follows wheeled in her ellipse. -- Tennyson. [ 1913 Webster] 21 Moby Thesaurus words for " ellipse": arc, bow, catacaustic, catenary, caustic, circle, conchoid, crook, curl, curve, diacaustic, festoon, hook, hyperbola, lituus, oval, ovoid, ovule, parabola, sinus, tracery
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