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 III Tepes, also known as Dracula, is the main protagonist and titular character of Dracula Untold. Vlad is also the husband of the late Mirena, and the father of Ingeras. Vlad III Tepes was born in 1431 to Vlad II Tepes and an unnamed mother. In his childhood, Vlad was princely hostage by the Ottoman Empire and forced into the Janissary Corps, which trained children to battle those who were against the Turks. During his time in the corps, he met and befriended Mehmed II.