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 The Impaler Is Our Dracula (At Least For Now) Vlad the Impaler is the real Dracula in that he is a real historical figure who bore the name Dracula. Beyond that, little else connects him with the fictional count. To call him the model for Dracula is an exaggeration.