| A | B |
| a (an) | not; without |
| amoral | adj, not moral; without a sense of moral responsibility |
| amorphous | adj, without (having no) difinite forml shapeless; unorganized |
| anarchy | n, total absence of rule or government; confusionl disorder |
| anemia | n, lack of a normal number of red blood cells |
| anesthesia | n, loss of feeling or sensation resulting from ether, chloroform, novocaine, etc. |
| anhydrous | adj, destitute of (without) water |
| anomaly | n, deviation from the common rule |
| anomalous | adj, not normal; abnormal |
| anonymous | adj, nameless; of unkown or unnamed origin |
| anoxia | n, deprivation of (state of being without) oxygen |
| apnea | temporary cessation of breathing |
| aspetic | adj, free from disease-causing microorganisms |
| asymptomatic | adj, showing no symptoms of disease |
| atheism | n, godlessness; denial of the existance of a supreme being |
| atrophy | n, lack of growth, as from disuse, disease, or malnourishment |
| atypical | adj, unlike the typical |