Related Clues:
- Line touching curve
- Straight line resting on a circle
- Completely different line of thought — trigonometrical function
- Word with curve or wave
- Right-triangle ratio
- Math wave
- Trigonometrical function
- Cosine reciprocal
- ''__ invidia'' (unenvied: Lat.)
- Ratio of the hypotenuse to the adjacent side in a right-angled triangle
- Cosecant's opposite
- ___ die
- Function in 39-Down
- Reciprocal of 12-Down
- Line bordering a circle