The term 'TERRA-COTTA PET' is a crossword solution that can be broken down into two words. The first word, 'TERRA-COTTA, ' is a type of ceramic material made from clay and fired at high temperatures. It is often used to make pottery, sculptures, and other decorative items. The second word, 'PET, ' is an acronym for polyethylene terephthalate, which is a type of plastic commonly used to make bottles and other containers. Together, these two words form the term 'TERRA-COTTA PET, ' which is used to describe a type of plastic container made from a combination of clay and plastic.