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au rouge
met.	to a red-heat; red heat

au rouge: 69 phrases in 15 subjects

Agriculture	1
Amphibians and reptiles	2
Chemistry	9
Construction	2
Dyes	1
Electronics	1
Entomology	1
Environment	3
General	10
Industry	1
Medical	3
Metallurgy	22
Natural resourses and wildlife conservation	5
Ornithology	7
Pharmacy and pharmacology	1