hiatus

1. An interruption in the intensity or amount of something (synset 107382856)
   is a type of: break, interruption - some abrupt occurrence that interrupts an ongoing activity
   subtypes:

   • defervescence - abatement of a fever as indicated by a reduction in body temperature
   • remission, remittal, subsidence - an abatement in intensity or degree (as in the manifestations of a disease)
   same as: abatement, reprieve, respite, suspension
2. A missing piece (as a gap in a manuscript) (synset 107022063)
   is a type of: piece - an artistic or literary composition
3. A natural opening or perforation through a bone or a membranous structure (synset 105553072)
   is a type of: gap, opening - an open or empty space in or between things
   subtypes:

   • foramen of monro, interventricular foramen, monro's foramen - the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
   • foramen magnum - the large opening at the base of the cranium through which the spinal cord passes
   same as: foramen

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