• Baptism by immersion
• Immersion lithography or immersion microscopy, optical techniques in which liquid is between the objective and image plane in order to raise numerical aperture.
• Language immersion
• Immersion (mathematics), a smooth map whose differential is everywhere injective, related to the mathematical concept of an embedding
• Telepresence, also called teleimmersion
• Immersion (HCI)
• Immersion (virtual reality)
• Immersion Corporation, a haptic technology developer
• Immersion heater, a kind of water heater
• Immersion journalism, a style of journalism

See also

• Emersion