hydrogeniferous

== English == === Etymology === From hydrogen +‎ -i- +‎ -ferous. === Pronunciation === Rhymes: -ɪfəɹəs === Adjective === hydrogeniferous (comparative more hydrogeniferous, superlative most hydrogeniferous) (obsolete, chemistry) Containing or producing hydrogen === References === James A. H. Murray et al., editors (1884–1928), “Hydrogeniferous”, in A New English Dictionary on Historical Principles (Oxford English Dictionary), London: Clarendon Press, →OCLC.