"Purpurin" is a word in ENGLISH

The root of the Oldenlandia umbellata, native in India, which yieds a durable red dyestuff.

An orange-colored dyestuff, of artificial production.

An artificial, yellow, crystalline dye, C6H5N2.C6H3(NH2)2. Also, one of a group of dyestuffs resembling chrysoidine proper.

A dyestuff consisting of the dried bodies of females of the Coccus cacti, an insect native in Mexico, Central America, …

A yellow coal-tar dyestuff which probably consists chiefly of rosolic acid. See Aurin, and Rosolic acid under Rosolic.

A name given to any one of several yellow or scarlet dyestuffs of artificial production and complex structure. In general …

A dyestuff, obtained from the Chinese crocin, which produces a brilliant yellow.

To stain; to color; to give a new and permanent color to, as by the application of dyestuffs.

Material used for dyeing; a dyestuff.

A material used for dyeing.

A green compound used as a dyestuff, produced from aniline blue when acted upon by acid.

A yellow or brownish red dyestuff obtained by the action of bromine on fluorescein, and named from the fine rose-red …

A red dyestuff obtained from fluorescein by the action of iodine.

A yellow, crystalline, organic dyestuff, C16H14N2, of artifical production. It is a strong base, and is a complex derivative of …

A yellow, vegetable dyestuff, resembling quercitron.

A yellow crystalline dyestuff, regarded as a glucoside, extracted from a species (Rhamnus Frangula) of the buckthorn; -- called also …

Aniline red; an artificial coal-tar dyestuff, of a metallic green color superficially, resembling cantharides, but when dissolved forming a brilliant …

A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids.

A trade name for a dyestuff, consisting essentially of impure fuchsine.

An artificial, orange dyestuff, analogous to tropaolin, and like it used as an indicator in alkalimetry; -- called also methyl …