1. An alloy that contains 75 per cent gold
   - 18-karat gold [N. Amer]

Type of: alloy, metal

• superconducting supercollider
• superconductivity
• superconductor
• supercontinent
• supercool
• supercritical
• superego
• supererogation
• supererogatory
• superfamily
• superfamily Aphidoidea
• superfamily Apoidea
• superfamily Coccoidea
• superfamily Hominoidea
• superfamily Lamellicornia
• superfamily Muroidea
• superfamily Muscoidea
• superfamily Platyrrhini
• superfamily Sphecoidea
• superfamily Tineoidea
• superfamily Tyrannidae
• superfatted
• superfecta
• superfecundation
• superfetate