The ABO system consists of A, B, AB, and O blood types. People with type A have antibodies in the blood against type B. People with type B have antibodies in the blood against type A. People with AB have no anti-A or anti-B antibodies. People with type O have both anti-A and anti-B antibodies. People with type AB blood are called universal recipients, because they can receive any of the ABO types. People with type O blood are called universal donors, because their blood can be given to people with any of the ABO types.
Definition of huff. 1  intransitive verb. 2  1a : to emit puffs (as of breath or steam)b : to proceed with labored breathing huffed up to the peak. 3  2a : to make empty threats : blusterb : to react or behave indignantly. 4  transitive verb. 5  1 archaic : to treat with contempt. 6  2 : to make angry. 7  3 : to utter with indignation or scorn.
Huffing is when your dog is growling or barking with a low noise and puffing out or vibrating cheeks. Dog Puffing Cheeks Randomly. If your dog is randomly puffing their cheeks or huffing, this may not always be serious, but it could be. What seems random may actually have a cause and not be random at all. Pay attention to what your dog is doing directly before and after puffing her cheeks.