INVALIDATION
  1. refuting or degrading or discrediting or denying something someone else considers to be fact. (HCOB 2 Jun 71 I)
  2. any thought, emotion or effort, or counter-thought, counter-emotion or counter-effort which denies or smothers the thought, emotion or effort of the individual. (NOM, p. 56)
  3. invalidation by words is the symbolic level of being struck. (2ACC-19B, 5312CM09)
  4. basically, non-attention. Attention itself is quite important for attention is necessary before an effect can be created. (PAB 8)
  5. invalidation is force applied. You apply enough force to anybody and you've invalidated him. How invalidated can he get? Dead! (5207CM24B)
Abbr. Inval.

Technical Dictionary