D defs.my
Entry 2 senses Webster, 1913

Diametric

· Di·am·e·tric · IPA /daɪəˈmɛtɹɪk/
01 a. Of or pertaining to a diameter.
  1. 1.
    Of or pertaining to a diameter.
  2. 2.
    As remote as possible, as if at the opposite end of a diameter; directly adverse.