Search Result for "obsolescence": 
Wordnet 3.0

NOUN (1)

1. the process of becoming obsolete; falling into disuse or becoming out of date;
- Example: "a policy of planned obsolescence"



The Collaborative International Dictionary of English v.0.48:

Obsolescence \Ob`so*les"cence\, n. [See Obsolescent.]
   The state of becoming obsolete.
   [1913 Webster]


WordNet (r) 3.0 (2006):

obsolescence
    n 1: the process of becoming obsolete; falling into disuse or
         becoming out of date; "a policy of planned obsolescence"