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or diametric

[dahy-uh-me-tri-kuh l or dahy-uh-me-trik] /ˌdaɪ əˈmɛ trɪ kəl or ˌdaɪ əˈmɛ trɪk/
of, relating to, or along a diameter.
in direct opposition; being at opposite extremes; complete:
diametrical opposites; a diametrical difference.
Origin of diametrical
1545-55; < Greek diametrik(ós) (diámetr(os) diameter + -ikos -ic) + -al1
Related forms
diametrically, adverb
undiametric, adjective
undiametrical, adjective
undiametrically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for diametrically
Contemporary Examples
Historical Examples
  • His religion was designed to be diametrically opposed to Mahommedanism.

    The Story of the Malakand Field Force Sir Winston S. Churchill
  • But they do not agree together; some of them are diametrically opposed to others.

    Loss and Gain John Henry Newman
  • Yet the feelings with which they regarded them were diametrically opposite.

    The Free Lances Mayne Reid
  • Generally, with respect to crossing, the effects may be diametrically opposite.

  • Such inhabitants of the earth as are diametrically opposite to each other.

    The Sailor's Word-Book William Henry Smyth
British Dictionary definitions for diametrically


completely; utterly (esp in the phrase diametrically opposed)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for diametrically

1630s, "completely" (opposed, contrary, etc.); see diametric. Mostly in figurative use; the two points that mark the ends of a line of diameter across a circle are opposite one another.

Online Etymology Dictionary, © 2010 Douglas Harper
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