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 was the second of four brothers born into the noble family of Vlad II Dracul. His sobriquet Dracula (meaning âson of Draculâ) was derived from the Latin draco (âdragonâ) after his fatherâs induction into the Order of the Dragon, created by Holy Roman Emperor Sigismund for the defense of Christian Europe against the Ottoman Empire.