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constriction

con·stric·tion

constriction

 
pronunciation:
kn strIk shn
part of speech: noun
definition 1: the act or process of constricting, or that which constricts.
similar words:
contraction, pinch, taper
definition 2: the condition of being constricted.
definition 3: a tightness or pressure, as in the chest or an artery.