extinction coefficient [obsolete]

https://doi.org/10.1351/goldbook.E02294
See:
attenuation coefficient
Sources:
Green Book, 2nd ed., p. 32 [Terms] [Book]
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2242 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 973 [Terms] [Paper]