Noun: gaslight 'gas,lIt
Usage: informal
- Light yielded by the combustion of illuminating gas
"The streets were dimly lit by gaslight"
Usage: informal
- Manipulate someone psychologically so that they start to question their own sanity
"I was gaslighted a few times in situations where I was 100% in the right"
Derived forms: gaslighted, gaslighting, gaslights
Type of: light, visible light, visible radiation
Encyclopedia: Gaslight