Part 300

3. A liquid, as a sauce or gravy, served at table with a ladle or spoon. [Local, U.S.] Bartlett.

4. A dipped candle. [Colloq.] Marryat.

Dip of the horizon (Astron.), the angular depression of the seen or visible horizon below the true or natural horizon; the angle at the eye of an observer between a horizontal line and a tangent drawn from the eye to the surface of the ocean. -- Dip of the needle, or Magnetic dip, the angle formed, in a vertical plane, by a freely suspended magnetic needle, or the line of magnetic force, with a horizontal line; -- called also inclination. -- Dip of a stratum (Geol.), its greatest angle of inclination to the horizon, or that of a line perpendicular to its direction or strike; -- called also the pitch.

Di*pas"chal (?), a. [Pref. di- + paschal.] Including two passovers. Carpenter.

Dip"chick` (?), n. (Zoöl.) See Dabchick.

Di*pet"al*ous (?), a. [Pref. di- + petalous.] (Bot.) Having two petals; two- petaled.

Di*phe"nyl (?), n. [Pref. di- + phenyl.] (Chem.) A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united.

Diph*the"ri*a (?), n. [NL., fr. Gr. &?; leather (hence taken in the sense of membrane): cf. &?; to make soft, L. depsere to knead.] (Med.) A very dangerous contagious disease in which the air passages, and especially the throat, become coated with a false membrane, produced by the solidification of an inflammatory exudation. Cf. Group.

{ Diph*the"ri*al (?), Diph*ther"ic (?), } a. Relating to diphtheria; diphtheritic.

Diph`the*rit"ic (?), a. (Med.) 1. Pertaining to, or connected with, diphtheria.

2. Having characteristics resembling those of diphtheria; as, diphtheritic inflammation of the bladder.

Diph"thong (?; 115, 277), n. [L. diphthongus, Gr. &?;; di- = di`s- twice + &?; voice, sound, fr. &?; to utter a sound: cf. F. diphthongue.] (Orthoëpy) (a) A coalition or union of two vowel sounds pronounced in one syllable; as, ou in out, oi in noise; -- called a proper diphthong. (b) A vowel digraph; a union of two vowels in the same syllable, only one of them being sounded; as, ai in rain, eo in people; -- called an improper diphthong.

Diph"thong, v. t. To form or pronounce as a diphthong; diphthongize. [R.]

Diph*thon"gal (?; 115), a. Relating or belonging to a diphthong; having the nature of a diphthong. -- Diph*thon"gal*ly, adv.

Diph*thon"gal*ize (?; 115), v. t. To make into a diphthong; to pronounce as a diphthong.

Diph`thon*ga"tion (?), n. See Diphthongization.

Diph*thong"ic (?; 115), a. Of the nature of diphthong; diphthongal. H. Sweet.

Diph`thong*i*za"tion (?), n. The act of changing into a diphthong. H. Sweet.

Diph"thong*ize (?), v. t. & i. To change into a diphthong, as by affixing another vowel to a simple vowel. "The diphthongized long vowels." H. Sweet.

Diph`y*cer"cal (?), a. [Gr. difyh`s double (di- = di`s- twice + fy`ein to produce) + ke`rkos tail.] (Anat.) Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal.

Diph`y*gen"ic (-jn"k), a. [Gr. difyh`s of double form + - genic.] (Zoöl.) Having two modes of embryonic development. [1913 Webster]

Diph"yl*lous (df"l*ls or d*fl"-), a. [Gr. di- = di`s- twice + fy`llon leaf: cf. F. diphylle.] (Bot.) Having two leaves, as a calyx, etc. [1913 Webster]

Diph"y*o*dont (?), a. [Gr. &?; double (di- = di`s- twice + &?; to produce) + 'odoy`s, 'odo`ntos, tooth.] (Anat.) Having two successive sets of teeth (deciduous and permanent), one succeeding the other; as, a diphyodont mammal; diphyodont dentition; -- opposed to monophyodont. -- n. An animal having two successive sets of teeth.

Diph`y*o*zo"oid (?), n. [Gr. &?; of double from + E. zooid.] (Zoöl.) One of the free-swimming sexual zooids of Siphonophora.

Di*pla"nar (?), a. [Pref. di- + plane.] (Math.) Of or pertaining to two planes.

Di*plei"do*scope (?), n. [Gr. &?; double + &?; image + -scope.] (Astron.) An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is on the meridian.

Dip`lo*blas"tic (?), a. [Gr. &?; doublet + -blast + -ic.] (Biol.) Characterizing the ovum when it has two primary germinal layers.

Dip`lo*car"di*ac (?), a. [Gr. &?; double + E. cardiac.] (Anat.) Having the heart completely divided or double, one side systemic, the other pulmonary.