Search Result for "protectiveness": 
Wordnet 3.0

NOUN (2)

1. a feeling of protective affection;

2. the quality of providing protection;
- Example: "statistical evidence for the protectiveness of vaccination"



The Collaborative International Dictionary of English v.0.48:

Protectiveness \Pro*tect"ive*ness\, n.
   The quality or state of being protective. --W. Pater.
   [1913 Webster]


WordNet (r) 3.0 (2006):

protectiveness
    n 1: a feeling of protective affection
    2: the quality of providing protection; "statistical evidence
       for the protectiveness of vaccination"