methaniferous

adj

adj

Etymology From methane + -i- + -ferous.

That produces methane (used especially of certain bacteria).

But this “methaniferous” gas can be once more diluted with carbonic oxide, and passed through a second nickel apparatus.1911, Gas World, volume 55, page 196:
In the first of these articles C. Padovani and E. Gatti discuss the anomalous compressibility of methane and methaniferous gases when used for auto-traction.1948, The Chemical Age, volume 59, page 43:

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