a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin | (American football) the position of a player on a football team who is stationed behind the line of scrimmage |
the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved | the side that goes last or is not normally seen |
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord | a support that you can lean against while sitting |
a small sharp-pointed tip resembling a spike on a stem or leaf | the part of a garment that covers the back of your body |
any sharply pointed projection | the protective covering on the front, back, and spine of a book |
| the posterior part of a human (or animal) body from the neck to the end of the spine |
| the series of vertebrae forming the axis of the skeleton and protecting the spinal cord |
| the part of something that is furthest from the normal viewer |
| (football) a person who plays in the backfield |