naphthalene
nounA white crystalline aromatic compound, C10H8, derived from coal tar or petroleum and used in manufacturing dyes, moth repellents, and explosives and as a solvent.
nounA benzene hydrocarbon (C10H8) usually prepared from coal-tar.
nounA white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also
a dyestuff obtained from certain diazo derivatives of naphthylamine, and called also
a yellow dyestuff obtained from certain nitro derivatives of naphthol.
nounA
An
a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs