1. a small fluid-filled sac or cavity in the body
Usage: medical; biological
2. a small blister on the skin containing fluid
Usage: medical
3. a small cavity or sac containing liquid in plant or animal tissue
Usage: biology

Examples

• The doctor examined the small vesicles that had formed on the patient’s arm.
• Chicken pox causes itchy vesicles to appear on the skin.
• The cell membrane contains tiny vesicles that transport materials.
• Plant cells have vesicles that store water and nutrients.
• The vesicles burst and released their contents into the bloodstream.
• Synaptic vesicles store neurotransmitters in nerve cells.
• The rash consisted of numerous small vesicles filled with clear fluid.