Vesicle

Noun

1. A membrane-bound compartment found in a cell.
2. A small bladder-like cell or cavity, as: A small sac filled with juice, one of many constituting the pulp of a fruit such as an orange, lemon, or grapefruit.
3. A small sac filled with juice, one of many constituting the pulp of a fruit such as an orange, lemon, or grapefruit.
4. A small sac or cyst or vacuole, especially one containing fluid. A blister formed in or beneath the skin, containing serum. A bleb. Such a blister that is less than 5 mm in diameter.
5. Such a blister that is less than 5 mm in diameter.