The term 'LOWER-PRICED EDITION OF A BOOK' can be summarized as a book that is sold at a lower price than the original edition. This type of book is often referred to as a 'BACK' edition, which is derived from the four letter word used to describe it. BACK editions are typically printed with cheaper materials and are usually released after the original edition has been out for some time. They are often used to make books more accessible to a wider audience.