Wordnet 3.0
NOUN (1)
1. 
 the act of pelting with stones; 
 punishment inflicted by throwing stones at the victim (even unto death); 
[syn: stoning, lapidation]
The Collaborative International Dictionary of English v.0.48:
Lapidation \Lap`i*da"tion\, n. [L. lapidatio: cf. F.
   lapidation.]
   The act of stoning. [Obs.] --Bp. Hall.
   [1913 Webster]
WordNet (r) 3.0 (2006):
lapidation
    n 1: the act of pelting with stones; punishment inflicted by
         throwing stones at the victim (even unto death) [syn:
         stoning, lapidation]