noun - a state in west central United States in the Rocky Mountains
Synonyms:centennial statecolo.colorado
noun - a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
Synonyms:atomic number 27cobalt
noun - an odorless very poisonous gas that is a product of incomplete combustion of carbon
Synonyms:carbon monoxidecarbon monoxide gas
noun - one who refuses to serve in the armed forces on grounds of conscience
Synonyms:conscientious objector