| saprolegnia | (n) aquatic fungi growing chiefly on plant debris and animal remains, Syn. genus Saprolegnia |
| saprolegniales | (n) order of chiefly aquatic fungi, Syn. order Saprolegniales |
| white fungus | (n) a fungus that attacks living fish and tadpoles and spawn causing white fungus disease: a coating of white hyphae on especially peripheral parts (as fins), Syn. Saprolegnia ferax |