genipap and Sierre Leone peach, besides many plants noted for the beauty or the fragrance of their blossoms.

(Ru"bi*a*cin) n. [L. rubia madder, fr. rubeus red.] (Chem) A substance found in madder root, and probably identical with ruberythrinic acid.

(Ru"bi*an) n. [L. rubia madder, fr. rubeus red.] (Chem.) One of several color-producing glycosides found in madder root.

(Ru`bi*an"ic) a. (Chem.) pertaining to, or derived from, rubian; specifically, designating an acid called also ruberythrinic acid. [Obs.]

Ru bible
(Ru" bi*ble) n. A ribble. [Obs.] Chaucer.

(Ru"bi*can) a. [F.] Colored a prevailing red, bay, or black, with flecks of white or gray especially on the flanks; — said of horses. Smart.

(Ru"bi*celle) n. [Cf. F. rubacelle, rubicelle, fr. L. rubeus red, reddish.] (Min.) A variety of ruby of a yellowish red color, from Brazil.

(Ru"bi*con) n. (Anc. geog.) A small river which separated Italy from Cisalpine Gaul, the province alloted to Julius Cæsar.

By leading an army across this river, contrary to the prohibition of the civil government at Rome, Cæsar precipitated the civil war which resulted in the death of Pompey and the overthrow of the senate; hence, the phrase to pass or cross the Rubicon signifies to take the decisive step by which one is committed to a hazardous enterprise from which there is no retreat.

(Ru"bi*cund) a. [L. rubicundus, fr. rubere to be red, akin to ruber red. See Red.] Inclining to redness; ruddy; red. "His rubicund face." Longfellow.

(Ru`bi*cun"di*ty) n. [LL. rubicunditas.] The quality or state of being rubicund; ruddiness.

To parade your rubicundity and gray hairs.

(Ru*bid"ic) a. (Chem.) Of or pertaining to rubidium; containing rubidium.

(Ru"bi*dine) n. (Chem.) A nitrogenous base homologous with pyridine, obtained from coal tar as an oily liquid, C11H17N; also, any one of the group od metameric compounds of which rubidine is the type.

(Ru*bid"i*um) n. [NL., fr. L. rubidus red, fr. rubere to be red. So called from two dark red spectroscopic lines by means of which it was discovered in the lepidolite from Rozena, Moravia. See Rubicund.] (Chem.) A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2.

(Ru*bif"ic) a. [L. ruber red + facere to make.] Making red; as, rubific rays. Grew.

(Ru`bi*fi*ca"tion) n. [Cf. F. rubification.] The act of making red. Howell.

(Ru"bi*form) a. [L. ruber red + -form.] Having the nature or quality of red; as, the rubiform rays of the sun. [R.] Sir I. newton.

(Ru"bi*fy) v. t. [Cf. F. rubéfier. See Rubific.] To redden. [R.] "Waters rubifying." Chaucer.

  By PanEris using Melati.

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