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| a small anatomically normal sac or bladderlike structure (especially one containing fluid) | |||
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| a membranous sac for temporary retention of urine | |||
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| of or relating to a normal cyst (as the gallbladder or urinary bladder) | |||
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| of or relating to a bladder (especially the urinary bladder) | |||
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| a distensible membranous sac (usually containing liquid or gas) |