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.
pro-vost n [ME, fr. The Provost is the chief academic officer of the University and has responsibility for the University's academic and budgetary affairs. The Provost collaborates with the President in setting overall academic priorities for the University and allocates funds to carry these priorities forward.