noun.
A crystalline aromatic hydrocarbon, C14H10, extracted from coal tar and used in the manufacture of dyes and organic chemicals.
The Century Dictionary and Cyclopedia
noun.
A poisonous ptomaïne obtained from cultures of the anthrax bacillus.
noun.
A hydrocarbon (C14H10) found in coal-tar, and extracted from the last portion of the distillate from this substance by chilling and pressure.
the GNU version of the Collaborative International Dictionary of English
noun.
A solid hydrocarbon, C6H4.C2H2.C6H4, which accompanies naphthalene in the last stages of the distillation of coal tar. Its chief use is in the artificial production of alizarin.
noun.
A tricyclicaromatichydrocarbon (an acene containing three fused rings) obtained from coal tar; used in the manufacture of wood preservatives, insecticides and the dyealizarin; it is isomeric with phenanthrene.
Word Usage
"From this tar are produced a pound of benzine, a pound of toluene, a pound and a half of phenol, six pounds of naphthalene, a small quantity of a material called xylene and half a pound of anthracene, which is used in dyeing."