a membranous pouch, e.g. a cyst, vacuole, or cell, in a plant or animal, esp one filled with fluid or air
a blister
a pocket of embryonic tissue that is the beginning of an organ
a small cavity in a mineral or rock
vesicular /viʹsikyoolə/ adj
vesiculation noun
vesicularity /viˌsikyooʹlariti/ noun
vesiculate /viʹsikyoolət, -layt/ adj
[early French vesicule from Latin vesicula small bladder, blister, dimin. of vesica blister]