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If it is ten mm. long, it's this
Else clues• Hardest to see
• Hardest to see with the naked eye
• Least
• Least imposing
• Least large
• Like the little finger
• Most diminutive
• Most microscopic
• Most minuscule
• Most minute
• Most picayune
• Most wee
• Runt's adjective
• Runt's description