A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
Synonyms:
  1. cobalt
  2. carbon-monoxide
  3. atomic number 27
  4. carbon monoxide gas
A state in west central United States in the Rocky Mountains
(Noun)
Synonyms:
  1. colorado
  2. centennial-state
One who refuses to serve in the armed forces on grounds of conscience
(Noun)