Pruritus
/prʊˈraɪtəs/
Definition 1 of 1
Pro Tip 1/3Medical Use
Mostly used by healthcare professionals to describe symptoms related to itchiness. 
During the examination, the dermatologist documented the patient's pruritus.
Pro Tip 2/3Technical Term
It's a technical term and not typically used in casual conversation. People usually just say 'itch' or 'itchy'. 
He didn't say 'pruritus,' but rather that he had an itchy rash.
Pro Tip 3/3Severity Indicator
Pruritus is often used to describe a severe or chronic itching sensation, not a mild or temporary one. 
The cream offered relief from the persistent pruritus.