Russian-English translations for единичный

• isolated
• rare
  Black pearls are very rare and therefore very valuable
• single
  Can you give me a single reason not to leave right now?
  The vase contained a single long-stemmed rose
  The potatoes left the spoon and landed in a single big lump on the plate
• solitary
  The prisoners who started the riot were moved to solitary.
  a solitary journey
  a solitary life
• unit
  The centimetre is a unit of length
  This pill provides 500 units of Vitamin E
  He was a member of a special police unit