| Vocabulary Words | Meanings |
|---|---|
| x-ray | a special kind of photograph which shows doctors what the inside of your body looks like |
| xylography | wood engraving, a process of decorative painting on wood |
| xylophone | a set of narrow pieces of wood that make musical sounds when they are hit with wooden hammers |
Examples of back formation
1.Baby-sit (baby-sitter)
2.Gyre (gyroscope)
3.Edit (editor)