Wiktionary(0.00 / 0 votes)Rate this definition: 1  steal(Noun) The act of stealing. 2  steal(Noun) A piece of merchandise available at a very attractive price. 3  steal(Noun) A situation in which a defensive player actively takes possession of the ball or puck from the opponent's team. 4  steal(Noun) A stolen base.
Within the ABO/Rhesus Group systems which are used to classify most blood types, there are several rare blood types. The rarest is AB-, with less than one percent of the world's population having this blood type. B-and O-are also very rare, each accounting for less than 5% of the world's population.
Blood group AB is very rare and although AB blood types are able to receive any type of blood they are not able to donate blood to persons that are not blood group AB. Type O negative blood is considered the universal blood type. People with type O negative blood are called universal donors because type O negative blood is compatible to any blood recipientâs type. Ideally the donorâs blood types should always be an exact match to the recipientâs blood type. Universal donors should only be used in the case of medical emergency where there is an unavailability or shortage of the patientâs blood type or when a blood transfusion needs to be performed immediately, not allowing the time to cross type the blood ...