vesicle

A small enclosed structure or cavity, especially.

A membrane-bound structure within a cell in which materials such as enzymes are transported or stored.

A sac or cyst, especially one containing fluid.

A blister of the skin.

A cavity formed in volcanic rock by entrapment of a gas bubble during solidification.

Any small bladder-like structure, cavity, cell, or the like, in a body; a membranous or vesicular vessel or cavity; a little sac or cyst. Also vesicule.

A minute hollow sphere or bubble of water or other liquid.

In petrography, a cavity in lava formed by the expansion of escaping gasbubbles, chiefly of steam.

A bladderlike vessel; a membranous cavity; a cyst; a cell.

A small bladderlike body in the substance of a vegetable, or upon the surface of a leaf.