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, the 15th century nobleman better known by his patronym, Dracula, was a distant ancestor of Charles' great grandmother Queen Mary, wife of George V. The Baftanominated drama, which follows the school days of Vlad, the teenage son of Count Dracula, will return to CBBC this autumn.