Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A geometric element that generates a geometric figure, especially a straight line that generates a surface by moving in a specified fashion. Also called generator.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A curve that, when rotated about an axis, produces a solid figure

from the GNU version of the Collaborative International Dictionary of English

  • n. That which generates; the point, or the mathematical magnitude, which, by its motion, generates another magnitude, as a line, surface, or solid; -- called also describent.

from The Century Dictionary and Cyclopedia

  • n. In mathematics, that which generates; specifically, the point, line, or figure which by its motion is conceived to generate a line, surface, or solid.
  • n. In physics, a dynamo-electric machine employed to generate an electric current. Compare receptrix.

Etymologies

From Latin generatrix, from generator + feminine suffix -trix. (Wiktionary)

Examples

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