The Collaborative International Dictionary of English v.0.48:

Stinging \Sting"ing\, a.
   Piercing, or capable of piercing, with a sting; inflicting
   acute pain as if with a sting, goad, or pointed weapon;
   pungent; biting; as, stinging cold; a stinging rebuke. --
   Sting"ing*ly, adv.
   [1913 Webster]

   Stinging cell. (Zool.) Same as Lasso cell, under Lasso.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sting \Sting\, v. t. [imp. & p. p. Stung(Archaic Stang); p.
   pr. & vb. n. Stinging.] [AS. stingan; akin to Icel. & Sw.
   stinga, Dan. stinge, and probably to E. stick, v.t.; cf.
   Goth. usstiggan to put out, pluck out. Cf. Stick, v. t.]
   1. To pierce or wound with a sting; as, bees will sting an
      animal that irritates them; the nettles stung his hands.
      [1913 Webster]

   2. To pain acutely; as, the conscience is stung with remorse;
      to bite. "Slander stings the brave." --Pope.
      [1913 Webster]

   3. To goad; to incite, as by taunts or reproaches.
      [1913 Webster]

WordNet (r) 3.0 (2006):

stinging
    adj 1: (of speech) harsh or hurtful in tone or character;
           "cutting remarks"; "edged satire"; "a stinging comment"
           [syn: cutting, edged, stinging]
    n 1: a kind of pain; something as sudden and painful as being
         stung; "the sting of death"; "he felt the stinging of
         nettles" [syn: sting, stinging]