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, in full Vlad III Dracula or Romanian Vlad III DrÄculea, also called Vlad III or Romanian Vlad ÈepeÈ (born 1431, SighiÈoara, Transylvania [now in Romania]âdied 1476, north of present-day Bucharest, Romania), voivode (military governor, or prince) of Walachia (1448; 1456â1462; 1476) whose cruel methods of punishing his enemies gained ...