lemniscate
NounOpen English WordNet
Noun (1)
- any of several plane algebraic curves in the shape of a figure eightType of curve, curved shape
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Webster's Dictionary (1913)
Lem′nis·ca′ta (lĕm′nĭs-kā′tȧ), Lem·nis′cate (lĕm-nĭs′kāt) noun
Origin: L. lemniscatus adorned with ribbons, fr. lemniscus a ribbon hanging down, Gr. λημνίσκος.
Geometry A curve in the form of the figure 8, with both parts symmetrical, generated by the point in which a tangent to an equilateral hyperbola meets the perpendicular on it drawn from the center.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54