Related Clues:
- Intro to biology?
- Outside: Pref
- __-1: "Ghostbusters" car
- Outside introduction
- Prefix with -morph or -plasm
- Lead-in to skeleton
- ___ Cooler ('Ghostbusters'-themed Hi-C flavor)
- Beginning to morph?
- Opposite of "endo-"
- 'Outside' prefix used in 'Ghostbusters'
- Prefix with planet
- Prefix with morph or plasm
- Start for skeleton
- Skeletal start?
- "Plasm" prefix