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Dictionary · Word part

-sis

A word ending that means a state, condition or process.

sis suffix

What it means

The ending that turns a word into the name of a condition or action. A diagnosis is the process of identifying a disease, a prognosis is the likely outcome and paralysis is a state of not moving. Other endings such as -osisOH-sisA word ending that means an abnormal condition or process, or an increase.Full entry and -iasis are built on it, as in thrombosis and psoriasis.

Related terms

-osis

A word ending that means an abnormal condition or process, or an increase.

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