单词 | parabola |
释义 | parabola[ puh-rab-uh-luh ] / pəˈræb ə lə / SEE SYNONYMS FOR parabola ON THESAURUS.COM noun Geometry.a plane curve formed by the intersection of a right circular cone with a plane parallel to a generator of the cone; the set of points in a plane that are equidistant from a fixed line and a fixed point in the same plane or in a parallel plane. Equation: y2 = 2px or x2 = 2py. Origin of parabola1570–80; <New Latin <Greek parabolḗ an application. See parable Words nearby parabolaparabiosis, parablast, parable, parablepsia, parables, parabola, parabolic, parabolic aerial, parabolic antenna, parabolic mirror, parabolize Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for parabolaBritish Dictionary definitions for parabolaparabola / (pəˈræbələ) / nouna conic section formed by the intersection of a cone by a plane parallel to its side. Standard equation: y ² = 4 ax, where 2 a is the distance between focus and directrix Word Origin for parabolaC16: via New Latin from Greek parabolē a setting alongside; see parable Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for parabolaparabola [ (puh-rab-uh-luh) ] A geometrical shape (see geometry) consisting of a single bend and two lines going off to an infinite distance. notes for parabolaAn object that is propelled away from the Earth and then drawn back by gravity, such as a fly ball in baseball, follows a path shaped like a parabola. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Scientific definitions for parabolaparabola [ pə-răb′ə-lə ] The curve formed by the set of points in a plane that are all equally distant from both a given line (called the directrix) and a given point (called the focus) that is not on the line. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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