Immersion n. : The act of immersing, or the state of being immersed; a sinking within a fluid; a dipping; as, the immersion of Achilles in the Styx.

Immersion n. : Submersion in water for the purpose of Christian baptism, as, practiced by the Baptists.

Immersion n. : The state of being overhelmed or deeply absorbed; deep engagedness.

Immersion n. : The dissapearance of a celestail body, by passing either behind another, as in the occultation of a star, or into its shadow, as in the eclipse of a satellite; -- opposed to emersion.

Example:
Are there any Immersion heaters for using straight in a bathtub?

Taxonomy
Haptics, Immersion Corporation, user experience, technology, touch feedback, haptic technology, Touchsense, minimally invasive, invasive procedures, the user, competence, haptic feedback, digital devices, satisfaction, haptic systems, take full advantage, JavaScript-enabled, JavaScript support.

Defination from the web:
Immersion is leading the way to the new user experience thru Touchsense haptics (touch feedback) technology. ... About Immersion. Our solutions improve the way people interact with digital devices. ...