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The Collaborative International Dictionary of English v.0.48 (gcide)

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]


Diametral \Di*am"e*tral\, n.
A diameter. [Obs.] --Sir T. Browne.
[1913 Webster]

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