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 II Dracul. This article is about the father of Dracula (or Vlad the Impaler). For Dracula, see Vlad the Impaler. Vlad II, known as Vlad Dracul or Vlad the Dragon (before 1395 â November 1447), was voivode (or prince) of Wallachia from 1436 to 1442, and again from 1443 to 1447.