Clue: Parietal cell secretion

Answer: ACID

Length: 4

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Similar Clues:

• Contact via cell phone, perhaps (TEXT with 4 letters)
• Cellar contents (e.g. SALT with 4 letters)
• Cellist Jacqueline (DUPRE with 5 letters)
• Cell inhabitant (CON with 3 letters)
• Incur cellphone charges, maybe (ROAM with 4 letters)
• Brain cell (NEURON with 6 letters)
• They secrete disintegrated cells of themselves (HOLOCRINEGLANDS with 15 letters)
• Incur extra cell charges, perhaps (ROAM with 4 letters)
• ___ cell (e.g. SPERM with 5 letters)
• Moist, as a cellar (DANK with 4 letters)