| a combining form representing cyst in the formation of compound words: cystolith. |
| cysto- or cyst- pref. Bladder; cyst; sac: cystocele. [From New Latin cystis, bladder, from Greek kustis; see kwes- in Indo-European roots.] |
cysto- or cysti- or cyst-
pref.
Bladder; cyst; sac: cystocele.