Mass killings were termed special treatment, final solution (for the Jews), euthanasia (for the disabled), selection and disinfections. ‘Evacuation’ meant deporting people to gas chambers. They were labelled ‘disinfection-areas’, and looked like bathrooms equipped with fake showerheads.

The name given to gas chambers by the Nazis was "Disinfection Areas".

Explanation:
The Nazis used gas chambers as a method of mass murder during the Holocaust, primarily targeting Jews, but also other groups such as Romani people, disabled individuals, and political dissidents. The gas chambers were designed to exterminate large numbers of people quickly and efficiently.

1. Historical Context:
- The Holocaust was a systematic genocide carried out by the Nazi regime in Germany during World War II.
- The Nazis sought to eliminate entire groups of people they considered undesirable, primarily Jews.

2. Purpose of Gas Chambers:
- Gas chambers were constructed in concentration camps, such as Auschwitz, to facilitate the mass murder of targeted groups.
- These chambers were designed to deceive victims into believing they were entering a facility for disinfection or showers. This allowed the Nazis to maintain calm and prevent resistance.

3. Use of Disinfection Areas:
- The Nazis used the term "Disinfection Areas" to disguise the true purpose of the gas chambers.
- By presenting the chambers as places for hygiene and cleanliness, the Nazis aimed to lull victims into a false sense of security before their mass execution.

4. Deception and Psychological Warfare:
- The Nazis employed various tactics to deceive and manipulate their victims, including the use of euphemistic language.
- By labeling the gas chambers as "Disinfection Areas," they created a facade of benevolence, concealing the horrific reality of the gas chambers.

5. Implications:
- The choice of the term "Disinfection Areas" highlights the deliberate intention of the Nazis to hide their genocidal activities.
- It demonstrates the calculated manner in which the Nazis planned and executed the Holocaust, employing psychological warfare to maintain control and minimize resistance.

In conclusion, the name given to gas chambers by the Nazis was "Disinfection Areas." This term was intentionally used to deceive victims and maintain control over them during the mass extermination carried out during the Holocaust.