Part 282

Shak.

3. (Anat.) The elongation, or angular distance from the sun; -- said chiefly of the inferior planets. [R.]

Di*gres"sion*al (?), a. Pertaining to, or having the character of, a digression; departing from the main purpose or subject. T. Warton.

Di*gress"ive (?), a. [Cf. F. digressif.] Departing from the main subject; partaking of the nature of digression. Johnson.

Di*gress"ive*ly, adv. By way of digression.

Digue (?), n. [F. See Dike.] A bank; a dike. [Obs.] Sir W. Temple.

||Di*gyn"i*a (?), n. [NL., fr. Gr. di- = di`s- twice + &?; a woman, a female.] (Bot.) A Linnæan order of plants having two styles.

{ Di*gyn"i*an (?), Dig"y*nous (?), } a. [Cf. F. digyne.] (Bot.) Of or pertaining to the Digynia; having two styles.

Di*he"dral (?), a. [Gr. di- = di`s- twice + &?; a seat, bottom, base, fr. &?; to sit. Cf. Diedral.] 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.

Di*he"dron (?), n. [See Dihedral.] A figure with two sides or surfaces. Buchanan.

Di`hex*ag"o*nal (?), a. [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.

Di`i*amb" (?), n. A diiambus.

Di`i*am"bus (?), n. [NL., fr. Gr. &?;; di- = di`s- twice + &?;. See Lambus.] (Pros.) A double iambus; a foot consisting of two iambuses (&?; &?; &?; &?;).

Di*i"o*dide (?; 104), n. [Pref. di- + iodine.] (Chem.) A compound of a binary type containing two atoms of iodine; -- called also biniodide.

Di`i*sat"o*gen (?), n. [Pref. di- + isatine + -gen.] (Chem.) A red crystalline nitrogenous substance of artificial production, which by reduction passes directly to indigo.

Di*ju"di*cant (?), n. [L. dijudicans, p. pr.] One who dijudicates. [R.] Wood.

Di*ju"di*cate (?), v. i. [imp. & p. p. Dijudicated (?); p. pr. & vb. n. Dijucating (?).] [L. dijudicatus, p. p. of dijudicare to decide; di- = dis- + judicare to judge.] To make a judicial decision; to decide; to determine. [R.] Hales.

Di*ju`di*ca"tion (?), n. [L. dijudicatio.] The act of dijudicating; judgment. [R.] Cockeram.

||Di"ka (?), n. [Native West African name.] A kind of food, made from the almondlike seeds of the Irvingia Barteri, much used by natives of the west coast of Africa; -- called also dika bread.

Dike (d), n. [OE. dic, dike, diche, ditch, AS. dc dike, ditch; akin to D. dijk dike, G. deich, and prob. teich pond, Icel. dki dike, ditch, Dan. dige; perh. akin to Gr. tei^chos (for qei^chos) wall, and even E. dough; or perh. to Gr. ti^fos pool, marsh. Cf. Ditch.] 1. A ditch; a channel for water made by digging.

Little channels or dikes cut to every bed.

Ray.

2. An embankment to prevent inundations; a levee.

Dikes that the hands of the farmers had raised . . . Shut out the turbulent tides.

Longfellow.

3. A wall of turf or stone. [Scot.]

4. (Geol.) A wall-like mass of mineral matter, usually an intrusion of igneous rocks, filling up rents or fissures in the original strata.