It means that it looks like gold, which is golden in color. It shines like gold or it is the color of gold. Type of staphylococcus that is lethal (Staphylococcus aureus), golden staphylococcus or staphylococcus aureus.
1º_ Relative to gold, to its yellow colour. 2º_ Relative to the aura ( "halo" ) .
AUREUS: Gold coin of ancient Rome.