Diametric \Di*am"e*tric\, Diametrical \Di*am"e*tric*al\, a.

1. Of or pertaining to a diameter. [1913 Webster]

2. As remote as possible, as if at the opposite end of a diameter; directly adverse. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

diametrical adj
1: related to or along a diameter; "the diametral plane" [syn: diametral, diametric]
2: 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" [syn: diametric, opposite, polar]

Source: WordNet (r) 2.0
 

Diametric \Di*am"e*tric\, Diametrical \Di*am"e*tric*al\, a.

1. Of or pertaining to a diameter.

2. As remote as possible, as if at the opposite end of a diameter; directly adverse.

Source: Webster's Revised Unabridged Dictionary (1913)