Definition of metarhodopsin in English:

metarhodopsin

Pronunciation /ˌmɛtərə(ʊ)ˈdɒpsɪn/

noun

Biochemistry Physiology
  • Any of three intermediates formed during the photolysis of the visual pigment rhodopsin.

    "metarhodopsin I" noun a compound with peak absorbance at 478 nanometres, formed from lumirhodopsin and deprotonated to form metarhodopsin II. "metarhodopsin II" noun a compound with peak absorbance at 380 nanometres, formed from metarhodopsin I and hydrolysed to (all-trans-)retinal and opsin directly and through conversion to metarhodopsin III. "metarhodopsin III" noun a compound with peak absorbance at 465 nanometres, formed from metarhodopsin II and decaying to (all-trans-)retinal and opsin.

Origin

1950s. From meta- + rhodopsin.