[1] : The Collaborative International Dictionary of English v.0.48

urticate \ur"ticate\, v. t.  i. imp.  p. p. urticated; p.
   pr.  vb. n. urticating.
   to sting with, or as with, nettles; to irritate; to annoy.
   --g. a. sala.
   1913 webster
see also:
urticated urticating 

[2] : WordNet (r) 2.0

urticate
     v 1: whip with or as with nettles
     2: sting with or as with nettles and cause a stinging pain or
        sensation syn: nettle
see also:
nettle 

Urticate >> U Words
Urticate, definition of term: Urticate
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