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.
uk â /ËprÉv.Ést/ us â /ËprÉË.vÉst/. âº UK (in some universities) the person in charge of a particular college: the Provost of King's College, Cambridge. âº US an important official who helps to run a college or university. Thesaurus: synonyms and related words.