A blood type of the ABOsystem that has both blood antigens and may receive all blood types, and donate to AB.
(countable) A person with this blood type.
Ab
In Egyptian mythology, the spirit of the heart and the will and conscience of the recently deceased which proceeds to the afterlife and is given as evidence towards the deceased.
abs
(informal) The abdominalmuscles. plural of ab [First attested in the mid 20th century.]