Related Clues:

• About 2.5 centimeters
• Advance slowly
• Creep slowly
• About 25.4 mm
• Fraction of a foot
• Kind of worm
• Ruling division?
• 'Hedwig and the Angry ___'
• Foot division
• Make slow progress
• Unit of length
• Measure of length
• Small margin of victory
• Linear unit
• Crawl at a snail's pace