Online used-car retailer Carvana expanding to Miami. Carvana.com offers consumers the ability to shop, finance, purchase and trade in a car using its online platform â without ever stepping into a dealership. Online auto retailer Carvana is expanding to Miami.
retraction, n 1. a drawing or shrinking back; the laying back of tissues to expose a given part. n 2. distal movement of teeth; a distal or retrusive position of the teeth, dental arch, or jaw. retraction, gingival, n laying back of the free gingival tissue to expose the gingival margin area of a preparation by mechanical, chemical, or electrical means.
Chest retractions are a sucking in of the skin in between or around the bones of the chest when inhaling. Retractions may occur in several areas of the chest and are a sign of increased use of the chest muscles for breathing. This usually is a sign of difficulty breathing. As breathing becomes more difficult, areas of the chest where retractions can be seen increase. Mild difficulty breathing may cause retraction in the belly, just below the rib cage (subcostal) and at the bottom of the breastbone (substernal).