Diametral planes
Diametral Di*am"e*tral, a. [Gr. F. diam['e]tral.] Pertaining to a diameter; diametrical. [1913 Webster]

{Diametral curve}, {Diametral surface} (Geom.), any line or surface which bisects a system of parallel chords drawn in a curve or surface.

{Diametral planes} (Crystal.), planes in which two of the axes lie. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Diametral — Di*am e*tral, a. [Gr. F. diam[ e]tral.] Pertaining to a diameter; diametrical. [1913 Webster] {Diametral curve}, {Diametral surface} (Geom.), any line or surface which bisects a system of parallel chords drawn in a curve or surface. {Diametral… …   The Collaborative International Dictionary of English

  • Diametral curve — Diametral Di*am e*tral, a. [Gr. F. diam[ e]tral.] Pertaining to a diameter; diametrical. [1913 Webster] {Diametral curve}, {Diametral surface} (Geom.), any line or surface which bisects a system of parallel chords drawn in a curve or surface.… …   The Collaborative International Dictionary of English

  • Diametral surface — Diametral Di*am e*tral, a. [Gr. F. diam[ e]tral.] Pertaining to a diameter; diametrical. [1913 Webster] {Diametral curve}, {Diametral surface} (Geom.), any line or surface which bisects a system of parallel chords drawn in a curve or surface.… …   The Collaborative International Dictionary of English

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