- A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.
- A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of multiplication and division.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). napier's rods. Retrieved September 30, 2026, from http://smartdefine.org/napier%27s_rods/definitions/2035810 |
| Chicago | Webster's. 2011. "napier's rods" http://smartdefine.org/napier%27s_rods/definitions/2035810 (accessed September 30, 2026). |
| Harvard | Webster's 2011, napier's rods, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/napier%27s_rods/definitions/2035810>. |
| MLA | Webster's. "napier's rods" 27 May 2011. Web. 30 September 2026. <http://smartdefine.org/napier%27s_rods/definitions/2035810> |