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.
But its most famous occupant was Vlad âThe Impalerâ Tepes, a fearsome warrior who operated in the area and was imprisoned in the castle in the 15th century. Vlad was a member of the House of Draculesti, the name which gave rise to the famous vampire Count Dracula, the creation of the 19th-century writer Bram Stoker.