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.
Impalement was an Ottoman form of execution and Vlad III borrowed it. As he was the first Romanian prince to use such a punishment on a large scale, was nick-named Å¢epeÅ (Å£eapÄ in Romanian means impale, and Å£epeÅ, the one who use it)