Related Clues:

• Crawl at a snail's pace
• Small measure
• Yardstick unit
• Move slowly (along)
• Ruler division
• One of a foot's 12
• Nonmetric measure
• Mark of a good ruler?
• Snowfall unit
• Linear measure
• Ruler segment
• Slightest bit
• Measurement
• Screen-measuring unit
• About 1/39,000 of a kilometer