The root of the plant Rubia tinctorum, employed medicinally or as a source of colouring matter; the reddish-purple dyestuff or pigment prepared…

Historical. The Kermes or Scarlet Grain (see alkermes, n. 1); in later use also applied to Cochineal. Also: the dye made from either of these.

A red dye obtained from the root of the plant Alkanna tinctoria (see sense 2), and used for various purposes including dyeing cloth and (now…

The dye-stuff and dye yielded by this wood.

The best quality of madder (see madder, n. 2).

Alkanet, Alkanna tinctoria, a southern European plant with a root which is used to produce a red dye; the root of this plant or the dye (or other…

A dark red resinous substance produced as a protective coating by certain scale insects, esp. Kerria lacca (cf. lac insect n. at compounds 2), and…

Light pink; = carnation, n.2 1; a pigment or dye of this colour. Obsolete or archaic.

A kind of purple or red dye-stuff, obtained from various lichens.

A red or violet dye prepared from certain lichens, esp. Roccella tinctoria. Cf. archil, n.

In full mull-madder. The lowest grade of madder, obtained by grinding the loose fibres and fragments detached from the root during threshing.

The plant dyer's alkanet, Alkanna tinctoria (family Boraginaceae), whose roots yield a red dye; †the dye obtained from this plant (obsolete).

a dye.

= red sanderswood, n. In later use also: the tree yielding this wood.

A dye-stuff consisting of the dried bodies of the insect Coccus cacti, which is found on several species of cactus in Mexico and elsewhere. It is…

The dried petals of the Carthamus tinctorius (see 2), also the (red) dye produced from these petals. Used in the preparation of rouge.

The root of the Indian plant Oldenlandia umbellata (family Cinconaceæ), used to give a deep red dye to Indian cottons. Also chay root.

More fully Pernambuco wood. The hard, reddish wood of a tropical American tree, Caesalpinia echinata, of the family Caesalpiniaceae (Leguminosae)…

The deep red heartwood of a South Asian leguminous tree, Pterocarpus santalinus (subfamily Papilionoideae), used mainly as a dyewood and…

The reddish wood of any of numerous trees; esp. (in early use) brazil wood or other tropical dyewood; (in later use) timber obtained from the…

A red dyewood obtained from certain tropical American trees of the family Caesalpiniaceae (Leguminosae), esp. Caesalpinia echinata. Also called Nic…

A pigment or dye of this colour. In later use also spec., any one of a certain group of coal-tar colouring matters used in scarlet pigments and dyes.

A kind of fine, dark-grained cochineal. Cf. sylvester, n.1 2.

A scarlet dye; also attributive or as adj.

Name for an inferior kind of cochineal (supposed, like the true cochineal, to be the seed of a plant).

A kind of lichen furnishing a red dye: see cork, n.2

A low-quality grade of madder as sold in powdered form; madder of this grade (also gamene madder). Also in plural in same sense.

A red or violet dye; = orchil, n. 1. Now historical.

Madder; esp. the commercial product obtained by grinding the inner part of the root.

= safflower, n. 1.

A substance resembling catechu, usually of a brittle consistence and dark reddish-brown colour, consisting of the inspissated gum or juice of…

A brilliant and permanent red colour produced on cotton goods, essentially a madder red in combination with oil or fat, with an aluminous mordant…

= alizari, n.

An inferior quality of cochineal, consisting of the dried bodies of small or half-grown cochineal-insects.

The roots of Bengal madder (Rubia cordifolia) or, occasionally, of certain other Indian plants, used as the source of a red dye; (also) the…

Any of various red colouring matters or lakes obtained from madder. Usually with distinguishing word.

A red dye that is a constituent of orchil, consists of a number of substituted phenoxazine derivatives of orcinol, and can be obtained from orcinol…

Chemistry. A red dye extracted from the root of the madder and also prepared artificially by the oxidation of alizarin.

= red sanderswood, n.

A substance extracted from the root-bark of sassafras.

The noni or Indian mulberry, Morinda citrifolia. Also: the reddish dye obtained from this plant, used (esp. formerly) in India to colour cotton…

ammonium tin chloride, (NH4)2SnCl6, used as a red pigment in calico printing and as a mordant in dyeing.

A purple-pink aniline dye, fuchsin; the colour of this dye. Originally more fully Magenta red.

A salt of rosaniline, crystallizing in iridescent green tablets, soluble in water and forming a deep red liquid; used as a dye.

A bright red anthocyanin pigment occurring in the petals of red peonies and in certain other plants; = corallin, n.

†(a) The yellow colouring matter of saffron. Now Obsolete. (b) A coal-tar colour which dyes yellowish-red. Also, any of a large class of azine…

A red colouring matter, called also Pæonin, obtained in 1861 by treating phenol with sulphuric and oxalic acids. yellow corallin (= aurin, n.), a…

Madder root that has been stored under soil for some months and then allowed to dry, used to produce a reddish-purple dye.

A red aniline dye.

Any of a series of dyes or pigments made from alizarin and its relatives; the colour of such a dye, esp. a deep red or crimson.

A red dye-stuff produced by the addition of bromine to a solution of fluorescin in glacial acetic acid. Its potassium salt, known in commerce as…

sulphonated castor oil, principally used with alizarin to produce the colour Turkey red.

A red azo dye used for wool and silk, made by coupling sulphonated azonaphthalene and β-naphthol. Now chiefly historical.

Any of a series of red azo dyes.

A moderately fast red azo dye used for dyeing textiles and as a biological stain and food colouring.

Either of two red dyes that are chlorinated derivatives of eosin and are used as biological stains; dichlorotetrabromofluorescein, C20H6Br4Cl2O5…

A wood from one of several tropical American trees, esp. Hæmatoxylon brasiletto, or the red dye extracted from it. Also attributive.

Any of various azo pigment dyestuffs, many of which are the salts of diazo coupling compounds of β-naphthol and aromatic amino-sulphonic acids. Litho…