Related Clues:
- Petri dish substance
- Petri-dish matter
- Seaweed derivative
- Befoul
- Lab-culture medium
- Petri dish material
- Food stabilizer
- Bacteriologist's base
- John who was once married to Shirley Temple
- Culture need
- Agent for gelling
- Rooting section?
- The first Mr. Shirley Temple
- John who wed Shirley Temple
- Environment for multiplication, of sorts