A paronychia is an infection of the skin that surrounds a toenail or fingernail. Acute paronychia â This usually appears as a sudden, very painful area of swelling, warmth and redness around a fingernail or toenail, usually after an injury to the area.
Definition of 'reflector'. reflector (rÉªflektÉÊ³ ) A reflector is a small piece of specially patterned glass or plastic which is fitted to the back of a bicycle or car or to a post beside the road, and which glows when light shines on it. A reflector is a type of telescope which uses a mirror that is shaped like a ball.
Reflecting Telescope Facts. A reflecting telescope is one that causes an image to reflect at a focus point by using mirrors. It was invented during the 1680s by Isaac Newton. These telescopes improved the before used refracting telescopes by giving a clearer picture.eflecting telescopes are also called reflectors. Most telescopes used by astronomers today are reflectors. In Newtonian telescopes, one mirror is used to capture the image while another mirror is used to reflect the image from the first mirror.