Search Result for "immunosuppression": 
Wordnet 3.0

NOUN (1)

1. lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer); 



WordNet (r) 3.0 (2006):

immunosuppression
    n 1: lowering the body's normal immune response to invasion by
         foreign substances; can be deliberate (as in lowering the
         immune response to prevent rejection of a transplanted
         organ) or incidental (as a side effect of radiotherapy or
         chemotherapy for cancer)