(medicine) Of a blood type within the ABO and Rhblood grouping system. Blood type A negative has a phenotype of "A" and a Rhesus system classification of negative.
A-negative Sentence Examples
I wanted to shout something like Dracula is out of his casket and has a thirst for my wife's A-negative blood, but I bit my tongue and begged that this was truly an emergency.
He was peppered with questions from the rescuers, many of whom he recognized, but he held responses to a negative shake of his head and Billy Langstrom's name.
Not exactly the reaction she had expected, but certainly not a negative one.
At most stations a negative potential gradient is exceptional, unless during rain or thunder.
The air, as is now known, has always present in it ions, some carrying a positive and others a negative charge, and those having the opposite sign to the charged body are attracted and tend to discharge it.