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.
Etymology. 1  The name Vylad is a variant spelling of the name Vlad, a derivation of the name Vladimir, derived from the Slavic element vladeti meaning rule combined with meru meaning great, famous. The second element has also been associated with miru meaning peace, world.