phycomycete Syllabification: (phy·co·my·cete)Pronunciation: /ˌfīkōˈmīˌsēt, ˌfīkōmīˈsēt/Definition of phycomycete noun Botany any of the lower fungi, which typically form a nonseptate mycelium. Subdivisions Mastigomycotina and Zygomycotina; formerly placed in a class Phycomycetes phycomycete in other Oxford dictionaries Definition of phycomycete in the British & World English dictionary