photoautotrophic
/ˌfəʊtəʊˌɔːtə(ʊ)ˈtrɒfɪk/ /ˌfəʊtəʊˌɔːtə(ʊ)ˈtrəʊfɪk/Biology
adjective
Of an organism or its nutrition: autotrophic and obtaining energy from light; using light energy for biosynthesis from simple inorganic compounds.
Origin
1930s; earliest use found in Quarterly Review of Biology. From photo- + autotrophic. Compare German Photoautotrophie.