1 Cover tightly. 2  Preheat oven to 425 degrees F for 15 minutes. 3  Place the roast in the oven and immediately reduce the temperature down to 200 degrees F. 4  Roast for about 4 hours or until the meat is falling-apart tender (cooking time will vary depending on the size of the roast).
intrinsic. adj. 1. of or relating to the essential nature of a thing; inherent. 2. (Anatomy) anatomy situated within or peculiar to a part: intrinsic muscles. [C15: from Late Latin intrinsecus from Latin, inwardly, from intrÄ within + secus alongside; related to sequÄ« to follow].
Also called intrinsic parity. a number +1 or â1 assigned to each kind of elementary particle in such a way that the product of the parities of the particles in a system of particles multiplied by the parity of the wave function describing the system is unchanged when particles are created or annihilated.