Related Clues:

• Endo- opposite
• Prefix with -plasm
• Start to morph
• Prefix with -zoic
• The Ghostbusters' license plate, ___ 1
• Prefix for "parasite" or "plasm"
• ''Inner'' starter
• Morph lead-in
• Prefix denoting inside
• Outer: Pref.
• Outside opening
• Prefix meaning "inside"
• Prefix meaning 'inner'
• Inner (Pref.)
• Within: pref.