stenosis
n. C / Un. a narrowing of a tube or opening in the body. This can make it hard for things like blood or air to flow through.
n. the abnormal narrowing of a bodily passage or orifice, such as a blood vessel or valve. Often results in restricted flow or increased pressure within the affected system.
The doctor diagnosed the patient with aortic stenosis.
Narrowing of the coronary arteries, known as stenosis, can lead to chest pain and reduced blood flow to the heart muscle.
While some degree of narrowing is common with age, significant stenosis in the carotid artery requires immediate intervention to prevent a potential stroke.
From New Latin stenōsis, from Ancient Greek στένωσις (sténōsis, “narrowing”), from στενόω (stenóō, “to confine, to contract”) + -σις (-sis, nominal suffix), equivalent to steno- + -osis.