| Answer | Crossword Clue |
|---|---|
| OGEE | S-shaped line |
| ARC | Bow-shaped line |
| redans | V-shaped work, usually projecting from a fortified line |
| redan | V-shaped work, usually projecting from a fortified line |
| torus | a. doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane b. the solid enclosed by such a surface |
| tori | a. doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane b. the solid enclosed by such a surface |
