1. A fictional material (either a metal or crystalline mineral) that has a detrimental effect on Superman

Encyclopedia: Kryptonite

• dialogism
• dialogist
• dialogue
• dialogue box
• dialyse
• dialyser
• dialysis
• dialysis machine
• dialytic
• dialyze
• dialyzer
• diam
• diamagnet
• diamagnetic
• diamagnetism
• diamantine
• diamanté
• diameter
• diametral
• diametric
• diametrical
• diametrical opposition
• diametrically
• diamine
• diamond