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.
The noun VICAR has 3 senses: 1. a Roman Catholic priest who acts for another higher-ranking clergyman. 2. (Episcopal Church) a clergyman in charge of a chapel. 3. (Church of England) a clergyman appointed to act as priest of a parish. Familiarity information: VICAR used as a noun is uncommon.. a Roman Catholic priest who acts for another higher-ranking clergyman. 2. (Episcopal Church) a clergyman in charge of a chapel. 3. (Church of England) a clergyman appointed to act as priest of a parish. Familiarity information: VICAR used as a noun is uncommon.