noun, Botany. 1. the innermost part of a plant cell wall, deposited after the wall has ceased to increase in surface area.
noun 1. S wave. noun, Geology. 1. a transverse earthquake wave that travels through the interior of the earth and is usually the second conspicuous wave to reach a seismograph. S wave n. A downward deflection of the QRS complex in an electrocardiogram following an R wave. secondary wave A type of seismic body wave […]
noun, Mathematics. 1. See under axiom of countability. axiom of countability noun, Mathematics. 1. 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 […]
- 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