1. 
   SPH
   Aviation acronym: Single-pilot Helicopter
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   SPH
   Society of Public Health
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   Sph
   Clip of a recording of a PVC heart condition made with a cardiac event monitor. ...
   Found op http://en.wikipedia.org/wiki/Sph
   
   
4. 
   sph
   1) Aviation single-pilot helicopter 2) Geom. figure 3) Orb
   Found op abbr.
   
   

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