Handbreadth

noun

1. A linear measurement approximating the width of the palm of the hand, from 2.5 to 4 inches (6.35 to 10.16 centimeters).
2. A space equal to the breadth of the hand; a palm: a unit of length in many metrical systems; especially, in books of the sixteenth and seventeenth centuries, one fourth of a philosophical foot, equal to about 2.45 English inches. Also called hand's-breadth.
3. A space equal to the breadth of the hand; a palm.
4. A space equal to the breadth of the hand; a palm - Exodus 37:12
5. any unit of length based on the breadth of the human hand