What is the difference between Ventilation and Respiration? â¢ Ventilation facilitates the process of respiration. Without ventilation, respiration cannot occur. â¢ The ventilation is the movement of air into and out of the lungs whereas the respiration is the exchange of oxygen and carbon dioxide.
Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Polypoid(adj) like a polyp; having the nature of a polyp, but lacking the tentacles or other parts. 2  Polypoid(adj) resembling a polypus in appearance; having a character like that of a polypus.
adÂ·iÂ·poÂ·necÂ·tin. n. A polypeptide hormone that is secreted by fat cells and regulates glucose and lipid metabolism, especially by increasing insulin sensitivity and muscle uptake of glucose and by decreasing glucose production in the liver.[Latin.dÂ·iÂ·poÂ·necÂ·tin. n. A polypeptide hormone that is secreted by fat cells and regulates glucose and lipid metabolism, especially by increasing insulin sensitivity and muscle uptake of glucose and by decreasing glucose production in the liver. [Latin.