What does SEH stand for?

Sehore - India - Seismograph station code, US Geological Survey (SEIS)

Sena - Language code (ETLW)

Sena - GeoNet three-character language code (GEON)

Seriously Emotionally Handicapped - Psychology (DHP)

Shin-Etsu Chemical Company Ltd (EFIS)

Short-Elliott-Hendrickson, Inc. (EFIS)

Shuttle Electronic Hardware - NASA

Single-Engined Helicopter (MCD)

Single Engine Helicopter (SAUS)

Societe Europeenne d'Hematologie

Solar Equivalent Hours

Spartech Corp. - NYSE symbol (SAG)

Spinal Epidural Hematoma - Medicine (MELL)

Standard Electric Hellas (SAUS)

Standard Electrik Hellas (NITA)

Star/Earth Horizon Sightings

Strobel, E. H., Saint Louis MO - STAC

Structured Exception Handling (SAUS)

Subependymal Hemorrhage - Medicine

Waglisla Air, Inc. - Canada - ICAO designator (FAAC)