#physical_sphere__physicalsphere__sphere  a solid figure bounded by a spherical surface (including the space it encloses)
  supertype:  round_shape__roundshape  a shape that is curved and without sharp angles
  subtype:  orb__globe  any object with a spherical shape; "a ball of fire"
     subtype:  crystal_ball__crystalball  a glass or crystal globe used in crystal gazing by fortunetellers
     subtype:  mothball__camphor_ball__camphorball  a small sphere of camphor or naphthalene used to keep moths away from stored clothing
     subtype:  time-ball  a ball that slides down a staff to show a fixed time; especially at an observatory
     subtype:  fireball  the luminous center of a nuclear explosion
     subtype:  fireball.orb  a ball of fire (such as the sun or a ball-shaped discharge of lightning)
     subtype:  globule  a small globe or ball
        subtype:  bubble  a hollow globule of gas (e.g., air or carbon dioxide)
           subtype:  air_bubble__airbubble  a bubble of air
           subtype:  froth__foam  a mass of small bubbles formed in or on a liquid
              subtype:  shaving_foam__shavingfoam  toiletry consisting of a liquid preparation containing many small bubbles that soften the beard before shaving
              subtype:  head.froth  the foam or froth that accumulates at the top when you pour an effervescent liquid into a container; "the beer had a large head of foam"
              subtype:  lather  the foam resulting from excessive sweating (as on a horse)
              subtype:  soapsuds__suds__lather  the froth produced by soaps or detergents
                 subtype:  shaving_cream__shavingcream__shaving_soap__shavingsoap  toiletry consisting of a preparation of soap and fatty acids that forms a rich lather for softening the beard before shaving
              subtype:  spume  foam or froth on the sea
              subtype:  white_water__whitewater  frothy water as in rapids or waterfalls
           subtype:  soap_bubble  a bubble formed by a thin soap film
     subtype:  spherule  a small sphere
     subtype:  pellet  a small sphere
     subtype:  bolus.orb__bolu  a small round soft mass (as of chewed food)

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