perhydrogenation
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perhydrogenation — per·hydrogenation … English syllables
perhydrogenate — perhydrogenation, n. /peuhr huy dreuh jeuh nayt , perr huy droj euh /, v.t., perhydrogenated, perhydrogenating. to hydrogenate as completely as possible. [PER + HYDROGENATE] * * * … Universalium