contraposition /kon-trə-pə-zishˈən/

1. Opposition, contrast
2. An immediate inference, which consists in denying the original subject of the contradictory of the original predicate (logic)

• iron ores
• iron oxide
• iron-pan
• iron-pans
• iron pyrites
• iron ration
• iron rations
• iron-red
• irons
• iron-sand
• iron-sick
• Ironside
• iron-sided
• Ironsides
• ironsmith
• ironsmiths
• ironstone
• ironstones
• ironware
• ironwares
• iron-willed
• iron-witted
• ironwood
• ironwoods
• iron-worded