Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Methane.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. methane

from the GNU version of the Collaborative International Dictionary of English

  • n. a light, combustible, gaseous hydrocarbon, CH4, produced artificially by the dry distillation of many organic substances, and occurring as a natural product of decomposition in stagnant pools, whence its name. It is an abundant ingredient of ordinary illuminating gas, and is the first member of the paraffin series. Called also methane, and in coal mines, fire damp.
  • n. See under Gas.

from The Century Dictionary and Cyclopedia

  • n. Light carbureted hydrogen. See fire-damp.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. methane gas produced when vegetation decomposes in water

Etymologies

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