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colour index
astr.	indice del colore
U-B colour index
astr.	indice di colore U-B
B-V colour index
astr.	indice di colore B-V
English thesaurus
colour index
hemat.	Fi (MichaelBurov)
Colour Index
abbr., comp.	CI (Vosoni)

colour index : 9 phrases in 3 subjects

Astronomy	6
Electronics	1
Lighting other than cinema	2