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Impregnated or tinctured with rhubarb. Floyer.

Pertaining to, or designating, an acid (commonly called chrysophanic acid) found in rhubarb (Rheum). [Obsoles.]

Pertaining to, or designating, an acid (commonly called sulphocyanic acid) which frms a red color with ferric salts. [Obsoles.]

Pertaining to, or designating, a colorless crystalline substance (called rhodizonic acid, and carboxylic acid) obtained from potassium carboxide and from certain quinones. It forms brilliant red, yellow, and purple salts.

Pertaining to, or designating, an isomeric modification of ricinoleic acid obtained as a white crystalline solid.

Pertaining to, or derived from, castor oil; formerly, designating an acid now called ricinoleic acid.

Pertaining to, or designating, a fatty acid analogous to oleic acid, obtained from castor oil as an oily substance, Cricinolic.

Pertaining to, or designating, a dibasic acid of the oxalic series found in archil (Roccella tinctoria, etc.), and other lichens, and extracted as a white crystalline substance C17H32O4.

s. -- Rogue's march, derisive music performed in driving away a person under popular indignation or official sentence, as when a soldier is drummed out of a regiment. -- Rogue's yarn, yarn of a different twist and color from the rest, inserted into the cordage of the British navy, to identify it if stolen, or for the…

mitted, this calendar fell into confusion. It was replaced by the Julian calendar. In designating the days of the month, the Romans reckoned backward from three fixed points, the calends, the nones, and the ides. The calends were always the first day of the month. The ides fell on the 15th in March, May, July (Quintili…

An American marine food fish (Bathymaster signatus) of the North Pacific coast, allied to the tilefish. [Written also ronquil.]

to destroy an error root and branch. -- Root-and-branch men, radical reformers; -- a designation applied to the English Independents (1641). See Citation under Radical, n., 2. -- Root barnacle (Zoöl.), one of the Rhizocephala. -- Root hair (Bot.), one of the slender, hairlike fibers found on the surface of fresh roo…

Pertaining to, or designating, an acid (called also lithic acid) found in certain red precipitates of urine. See Uric. [Obs.]

A prefix (also used adjectively) signifying rose-red; specifically used to designate certain rose-red compounds (called roseo-cobaltic compounds) of cobalt with ammonia. Cf. Luteo-.

Pertaining to, or designating, a complex red dyestuff (called rosolic acid) which is analogous to rosaniline and aurin. It is produced by oxidizing a mixture of phenol and cresol, as a dark red amorphous mass, C20H16O3, which forms weak salts with bases, and stable ones with acids. Called also methyl aurin, and, former…

und + ruban ribbon.] (a) A written petition, memorial, remonstrance, protest, etc., the signatures to which are made in a circle so as not to indicate who signed first. "No round robins signed by the whole main deck of the Academy or the Porch." De Quincey. (b) (Zoöl.) The cigar fish. -- Round shot, a solid spherical…

To coat or impregnate with rubber or a rubber solution or preparation, as silk.

Pertaining to, or designating, an acid extracted from madder root. It is a yellow crystalline substance from which alizarin is obtained.

pertaining to, or derived from, rubian; specifically, designating an acid called also ruberythrinic acid. [Obs.]

Pertaining to, or designating, a set of astronomical tables computed by Kepler, and founded on the observations of Tycho Brahe; - - so named from Rudolph II., emperor of Germany.