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Ultrarot adj.
anal.chem.	infrared (radiation)
chem.	infra-red
earth.sc.	ultra-red; infra-red radiation; infrared; ultrared; infrared radiation
ultrarot adj.
chem.	ultra red

Ultrarot: 20 phrases in 5 subjects

Analytical chemistry	7
Chemistry	2
Earth sciences	4
Electronics	3
Technology	4