Wordnet 3.0
NOUN (1)
1. 
 English chemist who was a pioneer in electrochemistry and who used it to isolate elements sodium and potassium and barium and boron and calcium and magnesium and chlorine (1778-1829); 
[syn: Davy, Humphrey Davy, Sir Humphrey Davy]
WordNet (r) 3.0 (2006):
Humphrey Davy
    n 1: English chemist who was a pioneer in electrochemistry and
         who used it to isolate elements sodium and potassium and
         barium and boron and calcium and magnesium and chlorine
         (1778-1829) [syn: Davy, Humphrey Davy, Sir Humphrey
         Davy]