Philtrum

{
  "id": "MLC-T-CHM-008766",
  "term": "Philtrum",
  "field": "Chemistry",
  "definition": "The shallow vertical furrow running down the middle of the upper lip from the nose to the lip's edge. It forms during embryonic development from the fusion of facial prominences. A smooth philtrum, with the groove flattened or absent, is one of the facial features used to diagnose fetal alcohol syndrome.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 792 (https://doi.org/10.1515/pac-2015-1202)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/philtrum/"
}