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. Vlad The Impaler was written by Sergio Pizzorno and is the 8th track on West Ryder Pauper Lunatic Asylum. It was released on 15 February 2010 as the fourth single off the album and peaked at #114 in the UK charts.