There are multiple definitions:

1. supercritical fluid chromatography(English)

   • often employed for separations involving non-volatile or thermally labile species that cannot be separated by GC or LC
   • GC, LC, PTEC
   • Biochemistry
   • https://doi.org…/rwsp.2000.0358
   • https://doi.org…27.2020.1712107

2. spot-forming cell(English)

   • HLA-B, HIV
   • Virology, AIDS
   • https://doi.org…28/JVI.00793-10

3. soap-free cleanser lotion(English)

   • BPO, CT
   • Dermatology, Therapeutic approaches
   • http://pubmed.n…h.gov/21284283/

4. sodium ferrous citrate(English)

   • an iron compound primarily utilized as a highly bioavailable iron supplement and as a metabolic enhancer when paired with 5-aminolevulinic acid (5-ALA)
   • 5-ALA, OIAT
   • Hematology, Diagnostics
   • http://doi.org/…2185-011-0878-8