The amoebas inside the cyst are protected from the stomach's digestive acid.

Holes open in the ground at unpredictable intervals, dropping those nearby into pools of digestive acid.

Besides digestive acids, the stomach also contains mind-altering neurotoxins which keep victims from struggling and escaping.

This animation shows what happens to the digestive tract when digestive acids reach the esophagus from the stomach.

Her digestive acids infiltrated it, breaking it down, and gradually the mound subsided.

They are triggered by touch, and are extremely sticky with digestive acids.

The saliva burns with some type of digestive acid.

Cilla would always walk with a limp, the result of the eaters' digestive acid.

"A serpent could have swallowed it, and the digestive acids destroyed the weapon and the serpent."

For example, the anti-ulcer drug Tagamet blocks receptors in stomach cells that are responsible for producing digestive acids.