Definition of phycomycetous in English:
phycomycetous
Pronunciation /ˌfʌɪkə(ʊ)mʌɪˈsiːtəs/
adjective
Botany
Of or relating to the former class Phycomycetes of lower fungi; of the nature of a phycomycete.
Origin
Late 19th century; earliest use found in Science. From scientific Latin Phycomycetes + -ous.