Dictionary entry overview: What does indefinite mean? â¢ INDEFINITE (adjective) The adjective INDEFINITE has 2 senses: 1. vague or not clearly defined or stated 2. not decided or not known Familiarity information: INDEFINITE used as an adjective is rare.
Put the tenderloins on a rack in a roasting pan, and roast them in a 450Â°F oven. After about 15 minutes, check the internal temperature with a probe thermometer. For a tenderloin that's medium-rare, look for an internal temperature of 120Â°F. For medium, the internal temperature should be 125Â°F.When the tenderloin is cooked the way you like it, let it rest at room temperature for 15 minutes before slicing. This will let the juices redistribute so the meat is juicy all over.or medium, the internal temperature should be 125Â°F. When the tenderloin is cooked the way you like it, let it rest at room temperature for 15 minutes before slicing. This will let the juices redistribute so the meat is juicy all over.
Insert a meat thermometer into the center of the tenderloin. For a 2 1/2 to 3 lb. tenderloin, a meat thermometer should read 145 F for medium-well. For the same size tenderloin, medium-well should take roughly 40 to 45 minutes. Remove the beef tenderloin from the oven and let it rest for about 10 minutes before eating.