[1] : WordNet (r) 2.0

pierre simon de laplace
     n : french mathematician and astronomer who formulated the
         nebular hypothesis concerning the origins of the solar
         system and who developed the theory of probability
         1749-1827 syn: laplace, marquis de laplace
see also:
laplace marquis de laplace 

Simon >> S Words
Simon, definition of term: Simon
simon_pag1.html

Pierre >> P Words
Pierre, definition of term: Pierre
pierre_pag1.html

Laplace >> L Words
Laplace, definition of term: Laplace
laplace_pag1.html