title: Polynomial expressions of pigment nomograms.
mesh_terms: D000042:Absorption; D000818:Animals; D008027:Light; D008433:Mathematics; D011896:Rana temporaria; D012168:Retinal Pigments / Q000502:physiology*; D012243:Rhodopsin / Q000502:physiology; D013053:Spectrophotometry
chemical_list: D012168:Retinal Pigments; D012243:Rhodopsin