A-
Encyclopedia
A- may refer to:
- A- (plane), a U.S. military aircraft prefix
- A- blood, blood typeBlood typeA blood type is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells . These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system...
A negative. - A- (grade), a letter grade in the four point grade system, above 'B+', but below an 'A'
- Privative aPrivative aIn Ancient Greek grammar, privative a is the prefix a- that expresses negation or absence . It is derived from a Proto-Indo-European syllabic nasal *, the zero ablaut grade of the negation *ne, i.e. /n/ used as a vowel...
, a prefix expressing negation - ĀAA is the first letter and a vowel in the basic modern Latin alphabet. It is similar to the Ancient Greek letter Alpha, from which it derives.- Origins :...