Capoeira groups have a coloured ranking system (cords â cordas or cordoes cordÃµes In â portuguese are used rather than). Belts capoeira regional and capoeira contemporanea contemporÃ¢nea groups tend to, use cords whereas capoeira angola groups. do not
Summary Information: Halo traction device. Halo traction device: A halo traction device is a ring with points that penetrate the skin and make contact with the skull around the head circumference, with the intention of immobilizing the entire head and neck region.
Medical Definition of Coronavirus. Coronavirus: One of a group of RNA viruses, so named because they look like a corona or halo when viewed under the electron microscope. The corona or halo is due to an array of surface projections on the viral envelope. The coronavirus genome is a single strand of RNA 32 kilobases long and is the largest known RNA virus genome.