Definition of âevolutionâ - English Dictionary. See all translations. uk â /ËiË.vÉËluË.ÊÉn/ /Ëev.ÉËluË.ÊÉn/ us â /ËiË.vÉËluË.ÊÉn/ /Ëev.ÉËluË.ÊÉn/. B2 the way in which living things change and develop over millions of years:
Cefazolin is a cephalosporin (SEF a low spor in) antibiotic. It works by fighting bacteria in your body. Cefazolin is used to treat many kinds of bacterial infections, including severe or life-threatening forms. Cefazolin may also be used for purposes not listed in this medication guide.
Beta-lactam antibiotics. The Beta-lactam antibiotics are a broad class of antibiotics that includes the penicillins and the cephalosporins. Ceftriaxone (Rocephin), a cephalosporin, is sometimes given intravenously to patients with Lyme disease.enicillin antibiotics are historically significant because they were the first drugs that were effective against many previously serious diseases such as tuberculosis, syphilis, and staphylococcus infections. Penicillins are still widely used today, though many types of bacteria are now resistant.