(n.) A number or mark placed opposite the lower part of a letter or symbol to distinguish the symbol; thus, a0, b1, c2, xn, have 0, 1, 2, and n as subindices.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). subindex. Retrieved September 21, 2026, from http://smartdefine.org/subindex/definitions/2067661 |
| Chicago | Webster's. 2011. "subindex" http://smartdefine.org/subindex/definitions/2067661 (accessed September 21, 2026). |
| Harvard | Webster's 2011, subindex, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/subindex/definitions/2067661>. |
| MLA | Webster's. "subindex" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/subindex/definitions/2067661> |