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.
A flare is a tube packed with explosive chemicals that burn very brightly or give off smoke, usually to attract attention in an emergency. The two main kinds are handheld flares (which operate on the ground) and rocket flares (which are fired into the air). Handheld flares also come in two kinds. Signal flares burn with a bright red light as you hold them, while smoke flares (also called smoke signals) are designed to be held in the hand, placed on the ground, or dropped overboard into the sea to give off huge plumes of colorful (generally orange or red) smoke.