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Borrowed from other European languages, probably Frenchméthane or GermanMethan, words, in turn, coined in the late 1860s on the basis of méthyle or Methyl (with the final yl removed because of its wrong identification with a formative suffix) and the suffix -an, invented and proposed in 1866 by German Chemist August Wilhelm van Hoffmann to indicate a chain of carbon atoms with no double bonds.
metānu lieto kā daudzu vielu rūpniecisko izejvielu ― methane is used as an industrial raw material for many substances
metāns ir gāze bez krāsas un bez smaržas, gandrīz 2 reizes vieglāka par gaisu, maz šķist ūdenī ― methane is a colorless, odorless gas, almost twice lighter than air, little soluble in water