Related Clues:

• Vinegar, for one
• Etcher's material
• Low-pH chemical
• Rudely curt
• Tripper's drug
• Like sourballs
• Like crab apples
• You'll trip if you drop it
• Hydrochloric, e.g.
• Bitter to the taste
• What lawn liming reduces
• Like lemonade
• Fatty __
• Curtly sharp
• Battery stuff