A finger (sometimes fingerbreadth or finger's breadth) is any of several units of length that are approximately the width of an adult human finger. Exactly which part of the finger should be used is not defined; the width at the base of fingernail (#6 in the sketch) is typically less than that at the knuckle (#5).
A finger (sometimes fingerbreadth or finger's breadth) is any of several units of length that are approximately the width of an adult human finger. Exactly which part of the finger should be used is not defined; the width at the base of fingernail (#6 in the sketch) is typically less than that at the knuckle (#5).
Source: Wikipedia "Finger (unit)" · CC BY-SA 4.0
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