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hydrocolloid strip
hydrocoral
hydrocortisone
hydrocracking
hydrocyanic acid
hydrodynamic
hydrodynamics
hydroelectric
hydrofining
hydrofluoric acid
hydrofoil
hydroforming
hydrogasification
hydrogel
hydrogen
hydrogen bomb
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hydrofining
hy·dro·fin·ing [ hdrō fning ]


noun 
Definition:
 
process for purifying petroleum: a process by which petroleum products are stabilized and their sulfur content reduced by being treated with gaseous hydrogen in the presence of a catalyst
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