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hydrogen ['haɪdrəʤ(ə)n] n
chem.	hidrógeno m (hydrogenium)
econ.	hidrógeno m
hydrogen A flammable colourless gas that is the lightest and most abundant element in the universe. It occurs mainly in water and in most organic compounds and is used in the production of ammonia and other chemicals, in the hydrogenation of fats and oils, and in welding n
environ.	hidrógeno m

hydrogen: 380 phrases in 38 subjects

Agriculture	13
Antennas and waveguides	1
Chemistry	149
Drilling	3
Earth sciences	13
Economy	1
Electrochemistry	2
Electronics	19
Energy industry	12
English	2
Environment	10
Food industry	42
Food service and catering	10
General	8
Health care	2
Hobbies and pastimes	1
Isolation	1
Materials science	3
Measuring instruments	2
Medical	10
Metallurgy	25
Meteorology	6
Natural sciences	5
Nuclear and fusion power	1
Nuclear physics	1
Obsolete / dated	2
Oil / petroleum	2
Packaging	3
Pest control	2
Pharmacy and pharmacology	1
Physics	1
Politics	1
Technology	6
Textile industry	2
Thermal Energy	1
Transport	12
United Nations	4
Water supply	1