English Collins Dictionary - English synonyms & Thesaurus. 1 adj Something that is unique is the only one of its kind. Each person's signature is unique..., The area has its own unique language, Catalan. â¦ uniquely adv ADV group, ADV with v.
Solar flares are tremendous explosions on the surface of the Sun. In a matter of just a few minutes they heat material to many millions of degrees and release as much energy as a billion megatons of TNT.
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.