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.
Vlad, a 15th century prince, earned his nickname because of his penchant for impaling captured Turks and other enemies on stakes. To give you some idea of what kind of fella he was, his nickname was Vlad the Impaler. Vlad Gleyzer has held various leadership positions at Peerless over the past 14 years.