Related Clues:
- Protein-containing fluid portion of the blood
- The air we breathe
- Cookout gas
- Plato finally co-ordinates knowledge — it's inspired
- O'Grady in orthodox drag to make endings funny
- About 21 percent of air
- Gas in scuba tanks
- Bottled fuel
- Fuel for glass
- C3H8, familiarly
- Balloonist's tankful
- Fuel on paper exploded
- Space shuttle gas
- Gaseous element, atomic no. 8
- About a fifth of the air