- mycoplasmaAny infectious bacterium of the genus Mycoplasma, often specifically Mycoplasma pneumoniae
- -myceteUsed to form words used for categorising fungi based on their evolutionary origin, life history, growth form, or ecological preferences.
- mycetefungus
- mycetismPoisoning caused by mushrooms.
- -mycinUsed to form names of antibiotics produced by Streptomyces strains.