| Rating | Solver | Clue |
|---|---|---|
| CREASE | Fold line | |
| SEAM | The fold or line formed by sewing together two pieces of cloth or leather. | |
| SYNCLINAL | Formed by strata dipping toward a common line or plane; as, a synclinal trough or valley; a synclinal fold; -- opposed to anticlinal. | |
| MEMBRANE | A thin layer or fold of tissue, usually supported by a fibrous network, serving to cover or line some part or organ, and often secreting or absorbing certain fluids. |