selt·zer 
(sĕltsər)
(sĕltsər)n.
1. A natural effervescent spring water of high mineral content.
2. See carbonated water.
[From German Selterser (Wasser) (water) of Selters, a village of central Germany.]
- cat burglar
- catcall
- catch
- Catch-22
- catchable
- catch a crab
- catchall
- catch-as-catch-can
- catch basin
- catch breath
- catch death
- catcher
- catch fire
- catchfly
- catchiness
- catching
- catch it
- catchment
- catchment area
- catch on
- catch (one's) breath
- catch one's breath
- catch (one's) death
- catch one's death
- catch out