The average distance is about 150 million kilometers (149.6) or 93 million miles (92.9). This is defined as 1 astronomical unit, or AU, and is equal to about 8.2 light-minutes, as light from the Sun takes about 8 minutes to reach Earth.
The definition of a scourge is someone or something that causes a lot of trouble, problems or suffering. An example of a scourge is famine or the outbreak of a disease. YourDictionary definition and usage example.
scab. 1  the incrustation that forms over a sore or wound during healing. 2  Veterinary Pathology. a mangy disease in animals, especially sheep; scabies. Compare itch (def 10). 3  Plant Pathology. a disease of plants characterized by crustlike lesions on the affected parts and caused by a fungus or bacterium. one of these crustlike lesions.