soda Meaning, Definition & Usage

  1. noun a sodium salt of carbonic acid; used in making soap powders and glass and paper
    sodium carbonate; sal soda; washing soda; soda ash.
  2. noun a sweet drink containing carbonated water and flavoring
    tonic; soda pop; soda water; pop.
    • in New England they call sodas tonics

WordNet

So"da noun
Etymology
It., soda, in OIt., ashes used in making glass, fr. L. solida, fem. of solidus solid; solida having probably been a name of glasswort. See Solid.
Definitions
  1. (Chem.) (a) Sodium oxide or hydroxide. (b) Popularly, sodium carbonate or bicarbonate.

Webster 1913