For example, the "Soret peak" is used to describe the absorption of vividly-pigmented heme-containing moieties, such as various cytochromes.
fɔːɹ ɛɡzˈæmpəl, ðə "sˈɔːɹət pˈiːk" ɪz jˈuːzd tə dᵻskɹˈaɪb ðɪ ɐbsˈoːɹpʃən ʌv vˈɪvɪdlipɪɡmˈɛntɪd hˈiːmkəntˈeɪnɪŋ mˈɔɪɪɾiz, sˈʌtʃ ɐz vˈɛɹiəs sˈaɪɾəkɹˌoʊmz.