Noun | 1. | neuritis - inflammation of a nerve accompanied by pain and sometimes loss of function inflammation, redness, rubor - a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat multiple neuritis, polyneuritis - inflammation of many or all of the peripheral nerves (as in leprosy) retrobulbar neuritis - inflammation of the optic nerve behind the eye; common in multiple sclerosis |