Time Lords

The Time Lords were the Gallifreyan people that made up the government of the planet Gallifrey. Similar to humans the Time Lords has male as well as females, known as Time Ladies.

For more info on this topic visit tardis.wikia.com/wiki/Time_Lord

Gallifreyans

The Gallifreyans were once one of the oldest and mightiest civilizations in the universe. They wrote in a language of the same name, Gallifreyan. They participated in a war known as "The Last Great Time War" which lead to their downfall. The Daleks were already a merciless and murderous race, but as the Time Lords fought against them they went down a dark path. This led to The Doctor using the moment in The Last Great Time War to time-lock all of the participants.

For more info on this topic visit tardis.wikia.com/wiki/Gallifreyan

Regeneration

Regeneration is the process of when a Time Lord renews themselves, due to old age or a fatal injury. Regeneration can also be invoked by choice, or by an outside force. A Time Lord can choose not to regenerate, but this would lead to death. If a Time Lord is fatally harmed during the regeneration process they will die forever. Regeneration causes them to change apperance and often personality. A Time Lord can change gender when they regenerate, although The Doctor has always remained male. Time Lords have a limited amount of regenerations; 12 regenerations, meaning 13 incarnations. The Doctor stated, in the 2005 revival of the show, that even though he technically evaded death, the regeneration process felt like he was dying. When a Time Lord is regenerating they emit a gold/yellow "light". If a Time Lord refuses to regenerate, they die.

For more info on this topic visit tardis.wikia.com/wiki/Regeneration