cyst has definitions from the fields of anatomy,zoology,medicine,pathology
1
[ noun ] (medicine,pathology) a closed sac that develops abnormally in some body structure

Used in print

(Jack Kaplan, "The Health Machine Menace: Therapy by...)

After another treatment with the machine , he told her that `` her entire body was shot_through with tumors and cysts '' .

He then sold her some capsules that he asserted would take_care of the tumors and cysts until she could collect the money for buying his machine .

(J. W. C. Hagstrom et al., "Debilitating muscular...)

The surfaces were coarsely and finely granular and punctuated by clear , fluid filled cysts measuring up_to 3 cm. in diameter .

2
[ noun ] (anatomy,zoology) a small anatomically normal sac or bladderlike structure (especially one containing fluid)

Synonyms

vesicle

*