(n): an oxide containing just one atom of oxygen in the molecule
(n): a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
(n): any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
(n): one who refuses to serve in the armed forces on grounds of conscience
(n): a person who dissents from some established policy
(n): a state in west central United States in the Rocky Mountains
(n): one of the 50 states of the United States
Co. Chemical element symbol for Cobalt.
A jackdaw (obsolete).