1. Of or pertaining to a diameter.

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

DIAMETRICALLY
Di*am"e*tric*al*ly, adv.

Defn: In a diametrical manner; directly; as, diametrically opposite.
Whose principles were diametrically opposed to his. Macaulay.

DIAMIDE
Di*am"ide (; 104), n. Etym: [Pref. di- + amide.] (Chem.)

Defn: Any compound containing two amido groups united with one or more acid or negative radicals, — as distinguished from a diamine. Cf. Amido acid, under Amido, and Acid amide, under Amide.

DIAMIDO-
Di*am"i*do- (, a. (Chem.)

Defn: A prefix or combining form of Diamine.

Note: [Also used adjectively.]

DIAMINE
Di*am"ine (; 104), n. Etym: [Pref. di- + amine.] (Chem.)