#vestibule  any of various bodily cavities leading to another cavity (as of the ear or vagina)
  supertype:  bodily_cavity__cavity__cavum  (anatomy) a natural hollow or sinus within the body
  subtype:  vestibule_of_the_ear  the central cavity of the bony labyrinth of the ear
  subtype:  vestibule_of_the_vagina  the space between the labia minora containing the orifice of the urethra

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