extremal


ex·trem·al

E0304050 (ĭk-strē′məl)adj.1. Mathematics Of or relating to maximal or minimal values or degrees of inclusiveness.2. Having or characterized by extreme properties or conditions: extremal black holes.

extremal

(ɪkˈstriːməl) n (Logic) maths logic the clause in a recursive definition that specifies that no items other than those generated by the stated rules fall within the definition, as in 1 is an integer, if n is an integer so is n+1, and nothing else is