1. Containing alum or aluminium

See also: metal, metallic

• closed-class word
• closed-door
• closed-end fund
• closed-end investment company
• closed-heart surgery
• closed-loop system
• closed-minded
• closed-ring
• closedown
• closefisted
• closelipped
• closely
• closely held corporation
• closely knit
• closely-held
• closemouthed
• closeness
• closeout
• closer
• closest
• closet
• closet auger
• closet drama
• closet queen
• closeup