n a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin
2
n a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall
3
a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall
4
n a decrease in size of an organ caused by disease or disuse n any weakening or degeneration (especially through lack of use) v undergo atrophy
5
any weakening or degeneration (especially through lack of use) v