constriction
Noun
Meaning
The act of constricting by means of some inherent power or by movement or change in the thing itself, as distinguished from compression.
The state of being constricted; the point where a thing is constricted; a narrowing or binding.
Source: Webster's dictionarySynonyms
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Examples
he felt a constriction in her chest
she felt an alarming tightness in her chest
emotion caused a constriction of his throat
ACh gives the signal for muscles to contract, preventing them from relaxing. citation Initial symptoms following exposure to nerve agents (like sarin ) are a runny nose, tightness in the chest, and constriction of the pupils.
A constriction in the end of the barrel known as the choke is used to tailor the pattern for different purposes.
Also, when the crocodile's mouth is closed, the large fourth tooth in the lower jaw fits into a constriction in the upper jaw.