Dictionary

vesicle

noun ves·i·cle \ˈve-si-kəl\

Definition of VESICLE

1
a :  a membranous and usually fluid-filled pouch (as a cyst, vacuole, or cell) in a plant or animal
b :  a small abnormal elevation of the outer layer of skin enclosing a watery liquid :  blister
c :  a pocket of embryonic tissue that is the beginning of an organ
2
:  a small cavity in a mineral or rock
ADVERTISEMENT

Origin of VESICLE

Middle French vesicule, from Latin vesicula small bladder, blister, from diminutive of vesica
First Known Use: 1578
Medical Dictionary

vesicle

noun ves·i·cle \ˈves-i-kəl\

Medical Definition of VESICLE

1
a :  a membranous and usually fluid-filled pouch (as a cyst, vacuole, or cell) in a plant or animal b :  synaptic vesicle
2
:  a small abnormal elevation of the outer layer of skin enclosing a watery liquid :  blister
3
:  a pocket of embryonic tissue that is the beginning of an organ—see auditory vesicle, brain vesicle, optic vesicle
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears