Definitions for "Diametric"
As remote as possible, as if at the opposite end of a diameter; directly adverse.
characterized by opposite extremes; completely opposed; "in diametric contradiction to his claims"; "diametrical (or opposite) points of view"; "opposite meanings"; "extreme and indefensible polar positions"
Keywords:  pertaining
Of or pertaining to a diameter.
Keywords:  plane, along, related
related to or along a diameter; "the diametral plane"