A town in northern New Mexico; population 11,600 (est. 2009). It has been a centre for nuclear research since the 1940s, when it was the site of the development of the first atomic and hydrogen bombs.
Definition of Los Alamos in US English:
Los Alamos
proper nounläs
A town in northern New Mexico; population 11,909 (2000). It is a center for nuclear research.