Search Result for "effectiveness": 
Wordnet 3.0

NOUN (2)

1. power to be effective; the quality of being able to bring about an effect;
[syn: effectiveness, effectivity, effectualness, effectuality]

2. capacity to produce strong physiological or chemical effects;
- Example: "the toxin's potency"
- Example: "the strength of the drinks"
[syn: potency, effectiveness, strength]



The Collaborative International Dictionary of English v.0.48:

Effectiveness \Ef*fect"ive*ness\, n.
   The quality of being effective.
   [1913 Webster]


WordNet (r) 3.0 (2006):

effectiveness
    n 1: power to be effective; the quality of being able to bring
         about an effect [syn: effectiveness, effectivity,
         effectualness, effectuality] [ant: ineffectiveness,
         ineffectuality, ineffectualness]
    2: capacity to produce strong physiological or chemical effects;
       "the toxin's potency"; "the strength of the drinks" [syn:
       potency, effectiveness, strength]