noun (n)

• a qualitative change(noun.event)

  Synonym:
  shift, transmutation
  

  source: wordnet30
• (mathematics) a function that changes the position or direction of the axes of a coordinate system(noun.linkdef)

  source: wordnet30
• a rule describing the conversion of one syntactic structure into another related syntactic structure(noun.communication)

  source: wordnet30
• (genetics) modification of a cell or bacterium by the uptake and incorporation of exogenous DNA(noun.act)

  source: wordnet30
• the act of changing in form or shape or appearance(noun.act)

  Synonym:
  translation
  

  source: wordnet30
• The act of transforming, or the state of being transformed; change of form or condition.(noun)

  source: webster1913