| 释义 | 
		pyth·i·a·cys·tis \ˌpithēəˈsistə̇s\ noun Usage: capitalized Etymology: New Latin, from pythia- (from Pythium) + -cystis  in former classifications  : a genus of fungi (family Pythiaceae) comprising a single species (P. citrophthora) that causes brown rot of citrus fruits and gummosis of citrus and other fruits and is now usually included in Phytophthora |