#constriction  the action or process of constricting or squeezing
  supertype:  #squeezing__squeeze  the act of gripping and pressing firmly; "he gave her cheek a playful squeeze"
  subtype:  #spasm  (pathology) sudden constriction of a hollow organ (as a blood vessel)
     subtype:  #bronchospasm  a spasm of the bronchi that makes exhalation difficult and noisy; associated with asthma and bronchitis
     subtype:  #cardiospasm  a spasm of the cardiac sphincter (between the esophagus and the stomach); if the cardiac sphincter does not relax during swallowing the passage of food into the stomach is obstructed
     subtype:  #retch__heave  an involuntary spasm of ineffectual vomiting; "a bad case of the heaves"
     subtype:  #laryngismus__laryngismu  laryngeal spasm caused by the sudden contraction of laryngeal muscles
  subtype:  #strangulation  (pathology) constriction of a body part so as to cut off the flow of blood or other fluid: "strangulation of the intestine"
  subtype:  #vasoconstriction  decrease in the diameter of blood vessels

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