Final answer:
The word part that means "narrowing" is -stenosis.
Step-by-step explanation:
The word part that means "narrowing" is -stenosis. It is commonly used in medical terminology to describe a condition characterized by the abnormal narrowing or constriction of a passage or opening in the body. For example, spinal stenosis refers to the narrowing of the spinal canal, which can cause compression of the spinal cord and nerves.
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