cyst
1. [ noun ] (medicine,pathology) a closed sac that develops abnormally in some body structure
Related terms: pathology ovarian_cyst nabothian_cyst dermoid_cyst galactocele hydatid sebaceous_cyst ranula hemorrhagic_cyst
2. [ noun ] (anatomy,zoology) a small anatomically normal sac or bladderlike structure (especially one containing fluid)
Synonyms: vesicle
Related terms: sac blister Golgi_body follicle seminal_vesicle liposome lacrimal_sac