Greek-English translations for διαστολή

• dilatation
• bar
  The window was protected by steel bars
  Ancient Sparta used iron bars instead of handy coins in more valuable alloy, to physically discourage the use of money
  We are expecting a carload of bar tomorrow
• bar line
• diastole
• dilation
• distension
• distention
• expansion
  The expansion of metals and plastics in response to heat is well understood
  My new office is in the expansion behind the main building
  This expansion requires the original game board