noun
- A silvery ductile metallic element found primarily in bauxite.
- synonyms: aluminum, aluminium, Al, atomic number 13
- A state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War.
- synonyms: Alabama, Heart of Dixie, Camellia State, AL
- Thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ALS. Retrieved September 20, 2026, from http://smartdefine.org/als/definitions/1255919 |
| Chicago | WordNet. 2010. "ALS" http://smartdefine.org/als/definitions/1255919 (accessed September 20, 2026). |
| Harvard | WordNet 2010, ALS, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/als/definitions/1255919>. |
| MLA | WordNet. "ALS" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/als/definitions/1255919> |