vesica

Noun
  1. A distensible membranous sac (usually containing liquid or gas) (synset 105519790)
    is a type of: sac - a structure resembling a bag in an animal
    subtypes:
    • gall bladder, gallbladder - a muscular sac attached to the liver that stores bile (secreted by the liver) until it is needed for digestion
    • urinary bladder - a membranous sac for temporary retention of urine
    same as: bladder

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