noun[mass noun] Medicine
- infestation with a yeast-like fungus, resulting in tumours in the lungs and sometimes spreading to the brain. It occurs chiefly in the United States. Also called torulosis.
- The fungus is Cryptococcus neoformans, subdivision Deuteromycotina (or class Teliomycetes)
1930s: from modern Latin Cryptococcus (part of the binomial of the fungus) + -osis