Defn: Of or pertaining to the Digynia; having two styles.
DIHEDRAL
Di*he"dral, a. Etym: [Gr. Diedral.]
Defn: Having two plane faces; as, the dihedral summit of a crystal. Dihedral angle, the angular space contained between planes which intersect. It is measured by the angle made by any two lines at right angles to the two planes.
DIHEDRON
Di*he"dron, n. Etym: [See Dihedral.]
Defn: A figure with two sides or surfaces. Buchanan.
DIHEXAGONAL Di`hex*ag"o*nal, a. Etym: [Pref. di- + hexagonal.] (a) Consisting of two hexagonal parts united; thus, a dihexagonal pyramid is composed of two hexagonal pyramids placed base to base. (b) Having twelve similar faces; as, a dihexagonal prism.
DIIAMB
Di`i*amb", n.
Defn: A diiambus.
DIIAMBUS
Di`i*am"bus, n. Etym: [NL., fr. Gr. Lambus.] (Pros.)
Defn: A double iambus; a foot consisting of two iambuses (