Wordnet 3.0
NOUN (1)
1.
American inventor who in 1775 designed a man-propelled submarine that was ineffectual but subsequently earned him recognition as a submarine pioneer (1742-1824);
[syn: Bushnell, David Bushnell, Father of the Submarine]
WordNet (r) 3.0 (2006):
David Bushnell
n 1: American inventor who in 1775 designed a man-propelled
submarine that was ineffectual but subsequently earned him
recognition as a submarine pioneer (1742-1824) [syn:
Bushnell, David Bushnell, Father of the Submarine]