Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis.

from the GNU version of the Collaborative International Dictionary of English

  • n. The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis. See focus, and parameter.

Etymologies

Latin latus ("side") + rectum ("right") (Wiktionary)

Examples

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