bladder
1. [ noun ] (anatomy,zoology) a distensible membranous sac (usually containing liquid or gas)
Synonyms: vesica
Related terms: sac gallbladder urinary_bladder
2. [ noun ] a bag that fills with air
Related terms: bag football
Similar spelling:   bladdery
  bladderpod
  bloater
  bleeder
  blotter
  blither
  blether
  Blatter
  blather