1. regen - Noun
2. regen - Verb
Regeneration.
(countable) A regenerative radio receiver.
(uncountable, rail transport, automotive) Short for regenerative braking.
regen (third-person singular simple present regens, present participle regenning or regening, simple past and past participle regenned or regened)
(informal) To regenerate.
Brake regen is typically associated with electrified cars, converting kinetic energy recovered under braking back into juice for the battery pack. Source: Internet
Once fired up, you can select from three different brake regen modes and three different power modes. Source: Internet
The tank's job is to take all the damage, so it is guaranteed at all times that regen will be of use to them. Source: Internet