Related Clues:
- Sulfuric ___
- Put money on a second Greek letter
- Nitric ___
- It lost to VHS in part because the porn industry didn't adopt it
- Graduate rings Lawrence over Greek letter
- Etching stuff
- It's not basic
- Need for 41-Across
- Phi __ Kappa
- Biological food processor
- Software preview
- Liquid that can eat through metal
- ___ rock
- Second letter from Greece
- Some take it for trips