phycomycetous /ˌfʌɪkə(ʊ)mʌɪˈsiːtəs/ adjective1 •Relating to the former class Phycomycetes of lower fungi; belonging to or characteristic of a phycomycete.[T]he 'Starmen were phycomycetous mentally, but morphologically they could not be distinguished from Terrans. — 1966 formsmore phycomycetous · most phycomycetous