1. (Bot.) (a) Of or pertaining to a natural order of plants (Rosaceæ) of which the rose is the type. It
includes also the plums and cherries, meadowsweet, brambles, the strawberry, the hawthorn, applies,
pears, service trees, and quinces. (b) Like a rose in shape or appearance; as, a rosaceous corolla.
2. Of a pure purpish pink color.
(Ro*sac"ic) a. [See Rosaceous.] (Old med. Chem.) Pertaining to, or designating, an acid
(called also lithic acid) found in certain red precipitates of urine. See Uric. [Obs.]
(Ro*sal"gar) n. realgar. [Obs.] chaucer.
(||Ro*sa"li*a) n. [Cf. F. rosalie.] (Mus.) A form of melody in which a phrase or passage is
successively repeated, each time a step or half step higher; a melodic sequence.
(Ros*an"i*line) n. [Rose + aniline.] (Chem.) A complex nitrogenous base, C20H21N3O,
obtained by oxidizing a mixture of aniline and toluidine, as a colorless crystalline substance which forms
red salts. These salts are essential components of many of the socalled aniline dyes, as fuchsine, aniline
red, etc. By extension, any one of the series of substances derived from, or related to, rosaniline proper.
(Ro*sa"ri*an) n. A cultivator of roses.
(Ro"sa*ry) n.; pl. Rosaries [LL. rosarium a string of beads, L. rosarium a place planted with
roses, rosa a rose: cf. F. rosaire. See Rose.]
1. A bed of roses, or place where roses grow. "Thick rosaries of scented thorn." Tennyson.
2. (R.C.Ch.) A series of prayers (see Note below) arranged to be recited in order, on beads; also, a
string of beads by which the prayers are counted.
His idolized book, and the whole rosary of his prayers.Milton.
A rosary consists of fifteen decades. Each decade contains ten Ave Marias marked by small beads,
preceded by a Paternoster, marked by a larger bead, and concluded by a Gloria Patri. Five decades
make a chaplet, a third part of the rosary. Bp. Fitzpatrick.
3. A chapelet; a garland; a series or collection, as of beautiful thoughts or of literary selections.
Every day propound to yourself a rosary or chaplet of good works to present to God at night.Jer. Taylor.
4. A coin bearing the figure of a rose, fraudulently circulated in Ireland in the 13th century for a penny.
Rosary shell (Zoöl.), any marine gastropod shell of the genus Monodonta. They are top-shaped, bright-
colored and pearly.
(Ros"cid) a. [L. roscidus, fr. ros, roris, dew.] Containing, or consisting of, dew; dewy. [R.]
(Ros"coe*lite) n. [From an English chemist, H.E. Roscoe + -lite.] (Min.) A green micaceous
mineral occurring in minute scales. It is essentially a silicate of aluminia and potash containing vanadium.
(Rose) imp. of Rise.
(Rose), n. [AS. rose, L. rosa, probably akin to Gr. Armor. vard, OPer. vareda; and perhaps to
E. wort: cf. F. rose, from the Latin. Cf. Copperas, Rhododendron.]
1. A flower and shrub of any species of the genus Rosa, of which there are many species, mostly found
in the morthern hemispere