Pyridinium Tribromide is used as a brominating agent for organic synthesis especially for pharmaceuticals and hormones. It can be replaced for n-Bromosuccinimide. (N-Bromo derivatives and ammonium tribromides are mainly used as brominating agents)
Top definition. Vlad. Vlad is usually a Russian name, sometimes romanian, and usually is an athletic all around great guy that is good at everything. He is known to have a big penis and is a legend in bed. He has an amazing body and really funny. He is very popular especially with females...fine females.
Surname. 1  Alexandru Vlad (born 1989), Romanian footballer. 2  Dan Vlad (born 1983), Romanian rugby union player. 3  Marcel Vlad (born 1948), Romanian wrestler.  Marina Marta Vlad (born 1949), Romanian 1  composer. Nicu Vlad (born 1963), Romanian weightlifter.  Roman Vlad (born 1919), Italian composer, pianist and musicologist.