• Webster's Revised Unabridged Dictionary
    • n Semiparabola (Geom) One branch of a parabola, being terminated at the principal vertex of the curve.
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Century Dictionary and Cyclopedia
    • n semiparabola In mathematics, a curve of such a nature that the powers of its ordinates are to each other as the next lower powers of its abscissas.
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Chambers's Twentieth Century Dictionary
    • Semiparabola one branch of a parabola being terminated at the principal vortex of the curve
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