- A purple color in a nobleman's escutcheon or coat of arms.
- A variety of crystallized quartz, of a purple or bluish violet color, of different shades. It is much used as a jeweler's stone.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). amethyst. Retrieved September 21, 2026, from http://smartdefine.org/amethyst/definitions/1973107 |
| Chicago | Webster's. 2011. "amethyst" http://smartdefine.org/amethyst/definitions/1973107 (accessed September 21, 2026). |
| Harvard | Webster's 2011, amethyst, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/amethyst/definitions/1973107>. |
| MLA | Webster's. "amethyst" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/amethyst/definitions/1973107> |