vesicle
Definitions
A small fluid-filled bladder, sac, cyst, or vacuole within the body.
A small structure within or outside a cell, consisting of liquid or cytoplasm enclosed by a lipid bilayer.
A small cavity or pit in a rock or mineral, typically formed by gas bubbles.
Examples
The cell transports proteins to the surface using a small membrane-bound vesicle.
During the process of endocytosis, the cell membrane pinches off to form a vesicle containing extracellular material.
Synaptic vesicles release neurotransmitters into the gap between neurons to facilitate communication.