#vacuole  a tiny cavity filled with fluid in the cytoplasm of a cell
  supertype:  #bodily_cavity__cavity__cavum  (anatomy) a natural hollow or sinus within the body
  part of:  #cell  the basic structural and functional unit of all organisms; cells may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
     part of:  #living_thing__organism__being  a living (or once living) entity that has (or can develop) the ability to act or function independently

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