to abolish by authoritative action: ANNUL. to treat as nonexistent: to fail to do what is required by (something, such as a responsibility). to suppress or prevent (a biological function or process and especially an immune response).
to abolish by authoritative action: ANNUL. to treat as nonexistent: to fail to do what is required by (something, such as a responsibility). to suppress or prevent (a biological function or process and especially an immune response).