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. the act of drawing back, or condition of being drawn back. clot retraction the drawing away of a blood clot from the wall of a vessel, a stage of wound healing caused by contraction of platelets; it is a function of blood platelets that can be tested to assess platelet viability.
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).