The boundary of a convex set is always a convex curve. The intersection of all convex sets containing a given subset A of Euclidean space is called the convex hull of A. It is the smallest convex set containing A.
Rector (ecclesiastical) A rector is, in an ecclesiastical sense, a cleric who functions as an administrative leader in some Christian denominations, and in Islam. In contrast, a vicar is also a cleric but functions as an assistant and representative of an administrative leader.
Dr. Daniel Bowen Dr. Bowen. An ovarian mass: Masses in the body can be benign or malignant and this term really describes anything from a simple bump in the skin to an aggressive cancer. Masses filled with a fluid are called cystic, and without fluid, solid. A reference to a tumorous process of the ovary is likely not cystic or fluid-filled but may represent the developement of a solid ovarian mass needing a doctor's attention.