See under axiom of countability.
axiom of countability
the property satisfied by a topological space in which the neighborhood system of each point has a base consisting of a countable number of neighborhoods (first axiom of countability) or the property satisfied by a topological space that has a base for its topology consisting of a countable number of subsets of the space (second axiom of countability)
- Second ballot
noun 1. an electoral procedure in which if no candidate emerges as a clear winner in a first ballot, candidates at the bottom of the poll are eliminated and another ballot is held among the remaining candidates
noun, Informal. 1. a comic who supports the leading comedian, often as a straight man, especially in burlesque or vaudeville. 2. any person who plays a secondary role or serves in a subsidiary capacity. second banana second banana see under top banana
noun, Baseball. 1. the second in order of the bases from home plate. 2. the position of the player covering the area of the infield between second and first bases.
noun, Baseball. 1. the player whose position is second base.