(medicine) The drug chlortetracycline, obtained from Streptomyces aureofaciens bacteria.

Originating from outside of Italy

(historical) One of a gang of ruffians who intimidated bookmakers at races, claiming to have placed bets when they had not.

(geography) On this side of. / (chemistry) Forming names of chemical compounds in which two atoms or groups are situated on the same side of some plane of symmetry passing through the compound.