flare definition
Medical Definition of Flare. Flare: 1. an exacerbation of a chronic disease. Sometimes referred to as a flare-up, a flare occurs when symptoms of a disease that has been present for a time suddenly worsen. A flare is a transient worsening in severity of a disease or condition that eventually subsides or lessens.
Definition of flare for Students. 1  1 : a sudden blaze of light the flare of a match. 2  2 : a blaze of light used to signal, light up something, or attract attention. 3  3 : a device or material used to produce a flare The emergency kit included flares.  4 : a sudden outburst She displayed a flare of anger.
A: The definition of âflareâ is a worsening of the disease process. If you have arthritis, you've probably experienced a flare at one time or another â your disease seems to be well under control for a while, then suddenly your joints become inflamed and painful. You may experience general malaise and fatigue. The cause of a flare varies depending on the specific disease in question.
flare verb (BURN BRIGHTLY) âº [ 1  I ] to burn brightly either for a short time or not regularly: âº [ 2  I ] also flare up When something bad such as violence, pain, or anger flares (up), it suddenly starts or gets much worse: âº [ 3  I or T ] to (cause to) become wider: âº [  C ] a sudden increase in the brightness of a fire: