Definition of microcyst in US English:

microcyst

noun

  • 1Mycology and Microbiology. Originally: an encysted myxamoeba with a thick, protective cell wall. Later also: a small, encapsulated resting cell produced by many myxobacteria.

  • 2Pathology. A microscopic or very small cyst.

Origin

Late 19th century; earliest use found in Henry Garnsey (1826–1903). From micro- + cyst, after German Microcyste.

Pronunciation

microcyst

/ˈmʌɪkrə(ʊ)sɪst/