verb (v)

• become wider(verb.change)

  Synonym:
  dilate
  

  source: wordnet30
• cause to expand as it by internal pressure(verb.change)

  Example:
  The gas distended the animal's body.
  

  source: wordnet30
• swell from or as if from internal pressure(verb.change)

  Example:
  The distended bellies of the starving cows.
  

  source: wordnet30
• To extend in some one direction; to lengthen out; to stretch.(verb)

  source: webster1913
• To become expanded or inflated; to swell.(verb)

  source: webster1913