1. 
[syn: cutting, keen, knifelike, piercing, stabbing, lancinate, lancinating]
The Collaborative International Dictionary of English v.0.48:
Lancinate \Lan"ci*nate\, v. t. [imp. & p. p. Lancinated; p.
   pr. & vb. n. Lancinating.] [L. lancinatus, p. p. of
   lancinare to fear.]
   To tear; to lacerate; to pierce or stab. --De Quincey.
   [1913 Webster]
WordNet (r) 3.0 (2006):
lancinate
    adj 1: painful as if caused by a sharp instrument; "a cutting
           wind"; "keen winds"; "knifelike cold"; "piercing
           knifelike pains"; "piercing cold"; "piercing criticism";
           "a stabbing pain"; "lancinating pain" [syn: cutting,
           keen, knifelike, piercing, stabbing, lancinate,
           lancinating]
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "lancinate":
   agonize, bloody, claw, convulse, crucify, excruciate, harrow,
   impale, kill by inches, lacerate, macerate, martyr, martyrize,
   punish, rack, rip, savage, scarify, torment, torture, wring