Cyst ¹

Definition: A pouch or sac without opening, usually membranous and containing morbid matter, which is accidentally developed in one of the natural cavities or in the substance of an organ.

Cyst ²

Definition: In old authors, the urinary bladder, or the gall bladder.

Cyst ³

Definition: One of the bladders or air vessels of certain algae, as of the great kelp of the Pacific, and common rockweeds (Fuci) of our shores.

Cyst ⁴

Definition: A small capsule or sac of the kind in which many immature entozoans exist in the tissues of living animals; also, a similar form in Rotifera, etc.

Cyst ⁵

Definition: A form assumed by Protozoa in which they become saclike and quiescent. It generally precedes the production of germs. See Encystment.

cyst ⁶

Definition: a small anatomically normal sac or bladderlike structure (especially one containing fluid)

cyst ⁷

Definition: a closed sac that develops abnormally in some body structure