| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| parabola |
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| SYLLABICATION: | pa·rab·o·la |
| PRONUNCIATION: |  p -r b -l |
| NOUN: | A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed line and a fixed point not on the line. | | ETYMOLOGY: | New Latin, from Greek parabol , comparison, application, parabola (from the relationship between the line joining the vertices of a conic and the line through its focus and parallel to its directrix), from paraballein, to compare. See parable.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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