sul·fite 
(sŭlfīt′)
(sŭlfīt′)n.
The divalent anionic group SO3, derived from sulfurous acid, or a compound containing this group.
sul·fitic (-fĭtĭk) adj.
- stratospherically
- stratovolcano
- stratum
- stratum corneum
- stratus
- Strauss
- Strauss
- Strauss
- Stravinsky
- straw
- strawberry
- strawberry blond
- strawberry blonde
- strawberry bush
- strawberry mark
- strawberry roan
- strawberry tomato
- strawberry tree
- strawboard
- straw boss
- straw donor
- strawflower
- straw-hat
- straw in the wind
- straw man