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refractive index
chem.	показник заломлення
ecol.	покажчик переломлення
O&G	коефіцієнт заломлення
phys.sc.	коефіцієнт заломлень
English thesaurus
refractive index
abbr., oil	net; saturation
abbr., opt.	n
jewl.	Measures the slowing down and bending of light rays as they enter a gemstone. Maybe used to identify gem species.

refractive index: 4 phrases in 2 subjects

Chemistry	2
Oil and gas	2