Definition of "analgesia"

analgesia

/ˌæn.əlˈd͡ʒiː.zi.ə/

noun
countable and uncountable, plural analgesias
1. (medicine) The inability to feel pain.
2. (pharmacology) An analgesic (medication that acts to relieve pain).
  Quotations
  Most physical distress yields to some analgesia—not so depression.
  1988 December 19, William Styron, “Why Primo Levi Need Not Have Died”, in The New York Times‎