- Caustic Spit
The user possesses acidic saliva.
- Acid Attacks
- Acid Generation
- Acid Manipulation
- Acidic Blood
- Acidic Bodily Fluids
- Acid Immunity
- Useless against Restoration.
- May not be immune to their own power.
- User is limited to how much spit they produce.
- Distance, mass, precision, etc. depend upon of the knowledge, skill, and strength of the user, and their power's natural limits.
- Some materials cannot be eroded.
- Xenomorphs (Aliens Franchise)
- Screegit (Ben 10: Omniverse)
- Acid Breath (Ben 10 series)
- Megidramon (Digimon)
- Gluttony (FullMetal Alchemist)
- Dragons (Folklore)
- Angel Salvador (Marvel Comics)
- 762 (Legion Personality) (Marvel Comics)
- Reptile (Mortal Kombat series)
- Cloe Walsh (No More Heroes)
- Boa Marigold (One Piece); via Habi Habi no Mi, Model King Cobra
- Unnamed Student (Sky High)
- Killer Moth (The Batman)
- Arachnid (Transformers: Prime)