Source : Webster's Revised Unabridged Dictionary (1913)

Als \Als\, adv.
   1. Also. [Obs.] --Chaucer.

   2. As. [Obs.] --Chaucer.

Source : WordNet®

ALS
     n : 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 [syn:
          {amyotrophic lateral sclerosis}, {Lou Gehrig's disease}]