- (Internet) An Internet top-level domain.
- 2007, Karyn Prechtel, “Bridging the Gap Between Doctor & Patient: Delivering Relevant Health Information”, in Bruce Fulton, editor, ¡Salud, Se Puede!: Proceedings of the 2007 Trejo Foster Foundation Institute, page 145:
- There are some exceptions again www.mayoclinic.com, is a very quality site and it's a .com, MedlinePlus has bought the .com URL of course.
This domain was originally intended to indicate websites that were commercial in nature; it is now used by a wide range of websites, regardless of their commercial nature.