Related Clues:
- Outside opening?
- "The Samurai" novelist Shusaku
- Prefix with skeleton or thermal
- ___-1 ("Ghostbusters" car)
- Start to morph?
- Prefix with dermis
- College course on insects, for short
- Prefix with plasm or morphic
- Prefix meaning "outer"
- Within, in combinations
- Within (Pref.)
- Prefix with derm
- Heading for morph
- Opposite of ecto
- Inner opening?