Wordnet 3.0
NOUN (1)
1.
a worker who joins or mends with solder;
The Collaborative International Dictionary of English v.0.48:
Solderer \Sol"der*er\, n.
One who solders.
[1913 Webster]
WordNet (r) 3.0 (2006):
solderer
n 1: a worker who joins or mends with solder