D20 (disambiguation)
From Wikipedia, the free encyclopedia
d20 or D20 can refer to:
- Arriflex D-20, a film-style digital high definition movie camera made by Arri
- Dice, d20 is a shorthand for a twenty-sided die
- d20 System, the core rules upon which the Dungeons & Dragons roleplaying game is based
- Heavy water, or deuterium oxide (D2O or 2H2O)