(n) 1. a woman who practices BDSM in everyday life; a woman who controls her partner mentally and physically, usually in a sexual way. Vanilla people categorize this type of lifestyle as kinky. The Dominatrix is stereotypically pictured as wearing stilleto boots, black leather outfit, and hold a whip.
2. a woman who gets paid to control a person, usually in a sexual way.
The ruling female tech geek who keeps track of web servers, dns, hosting and other technical geekiness required to keep her business running on the internet.
Dear Jane,
You're the Domainatrix, why don't you whip that dns web server into shape! How many domains do you own anyway?