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parabola |
Also found in: Medical, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.03 sec. |
parabola [pəˈræbələ] n (Mathematics) a conic section formed by the intersection of a cone by a plane parallel to its side. Standard equation: y2 = 4ax, where 2a is the distance between focus and directrix [via New Latin from Greek parabolē a setting alongside; see parable]
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| "Yes," said Nicholl, "it will follow either a parabola or a hyperbola. On being fired, the projectile rose with great velocity, described a majestic parabola, attained a height of about a thousand feet, and with a graceful curve descended in the midst of the vessels that lay there at anchor. At the same moment, as if the vessel was responsive to the appeal of Aramis, a second cloud of smoke mounted slowly to the heavens, and from the bosom of that cloud sparkled an arrow of flame, which described a parabola like a rainbow, and fell into the sea, where it continued to burn, illuminating a space of a quarter of a league in diameter. |
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