ambassador. 1  a diplomatic official of the highest rank, sent by one sovereign or state to another as its resident representative (ambassador extraordinary and plenipotentiary) 2  a diplomatic official of the highest rank sent by a government to represent it on a temporary mission, as for negotiating a treaty.
A bacteriostatic is a compound which has the effect of preventing bacterial growth. These agents do not kill bacteria like bactericidal compounds; instead, they limit further replication of bacteria at the site where they are introduced. Several antibiotic drugs are bacteriostatic agents, with tetracyclines being a notable example.
Bacteriophages (phages) are viruses that kill bacteria. The most common organisms on the planet, they control the number of bacteria and maintain ecological balances in nature. Each bacteriophage infects only a few bacterial species or types, potentially making them real precision-guided 'smart weapons' in the battle against bacterial infections.