Search Result for "weakener": 
Wordnet 3.0

NOUN (1)

1. that which weakens or causes a loss of strength;
- Example: "doubt is a great weakener of resolve"



The Collaborative International Dictionary of English v.0.48:

Weakener \Weak"en*er\, n.
   One who, or that which, weakens. "[Fastings] weakeners of
   sin." --South.
   [1913 Webster]


WordNet (r) 3.0 (2006):

weakener
    n 1: that which weakens or causes a loss of strength; "doubt is
         a great weakener of resolve"