from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.

from the GNU version of the Collaborative International Dictionary of English

  • n. A white crystalline hydrocarbon C15H10, of a complex structure, found as one ingredient of the higher boiling portion of coal tar.

from The Century Dictionary and Cyclopedia

  • n. A solid hydrocarbon, C15 H10, found in coal-tar, in American petroleum, and in the organic distillate obtained in the preparation of mercury from its ores in Idria, whence its other name, idryl. It melts at 110° C.


Sorry, no etymologies found.


  • The earthworms and nematodes are being exposed to a variety of toxins and chemicals including cadmium, copper, atrazine, fluoranthene and the insecticide aldicarb.

    BBC News | News Front Page | World Edition

  • The same report also indicated that laboratory tests have shown the site is contaminated with fluoranthene, phenanthrene, benzo (a) pyrene, and several metals including arsenic, chromium, copper, lead, silver and mercury all at levels that exceeded residential clean-up, direct contact or drinking water protection criteria.

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