<unk>  near the electrode in a flashtube. The high-energy electrical arc slowly erodes the glass, leaving a frosted appearance.<unk>  ( — removal) is removal or destruction of something from an object by vaporization, chipping, erosive processes or by other means. Examples of ablative materials are described below, and include spacecraft material for ascent and atmospheric reentry, ice and snow in glaciology, biological tissues in medicine and passive fire protection materials.
Ablation
Massage
Pulsed radiofrequency
Ballottement
Microwave ablation
Depot injection
Implantation 
Implant 