There are multiple definitions:

1. superior mesenteric vein(English)

   • CA, PV, SMA
   • Anatomy
   • https://doi.org…000000000003468

2. submental vertex(English)

   • BSSO, MRI, RIF, TMJ
   • Medical imaging
   • https://pubmed.…h.gov/12607859/

3. sodium metavanadate(English)

   • AAS, dRTA, EUV, FD, GF-AAS, GFR, ROS
   • Kidney and adrenals, Clinical chemistry
   • https://doi.org…155/2014/740105