i 1 m 3 m 3 u 1 n 1 o 1 s 1 u 1 p 3 p 3 r 1 e 1 s 1 s 1 i 1 o 1 n 1 s 1
18 letters · 26 points in Scrabble
Meaning
noun 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 si