For cooking, “medium” usually means:

  • Medium steak (doneness): internal temp around 135–145°F (about 57–63°C), with a warm pink center.
  • Medium heat on a stove (burner setting): roughly 300–375°F (about 150–190°C) at the pan surface, used for sautéing and most everyday cooking.

If you meant something more specific (like oven temp, grill, or steak vs. burgers), tell me the context and I can narrow it down. Information gathered from public forums or data available on the internet and portrayed here.