1. to lose physical form or substance; to become immaterial or disappear
2. to cause something to lose its physical form or to make it disappear

Examples

• The ghost seemed to dematerialize before our eyes.
• In science fiction movies, characters often dematerialize when using teleportation devices.
• The magician made the rabbit dematerialize from the hat.
• As the fog lifted, the mysterious figure began to dematerialize.
• The hologram started to flicker and dematerialize.
• Scientists theorized that the particles would dematerialize under extreme conditions.