any small sac or cavity, esp one containing serous fluid a blister a rounded cavity within a rock formed during solidification by expansion of the gases present in the magma a small bladder-like cavity occurring in certain seaweeds and aquatic plants any small cavity or cell
WordReference Random House Unabridged Dictionary of American English © 2026
ves•i•cle
(ves′i kəl),USA pronunciation n.
- Anatomya small sac or cyst.
- Anatomy, Cell Biology[Biol.]a small bladderlike cavity, esp. one filled with fluid.
- Pathologya circumscribed elevation of the epidermis containing serous fluid;
blister. - Geologya small, usually spherical cavity in a rock or mineral, formed by expansion of a gas or vapor before the enclosing body solidified.
- Latin vēsīcula little bladder. See vesica, -ule
- 1570–80
Collins Concise English Dictionary © HarperCollins Publishers::
'vesicle' also found in these entries (note: many are not synonyms or translations):
Graafian follicle
- air bladder
- air vesicle
- auditory vesicle
- bladder
- bleb
- blister
- bulla
- bursa
- clathrin
- coated pit
- coated vesicle
- cyst
- ejaculatory duct
- endocytosis
- exocytosis
- germinal vesicle
- hydatid
- otic vesicle
- otocyst
- phlyctena
- pinocytosis
- seminal vesicle
- thylakoid
- umbilication
- vacuole
- vesicular
- vesiculate