The act of not selecting someone (or something).

plural of selection bias

(biology) An evolutionary strategy that favors an individual organism's close kin over itself.

(evolutionary theory) A process by which heritable traits conferring survival and reproductive advantage to individuals, or related individuals, tend to be passed on to succeeding generations and become more frequent in a population, whereas other less favourable traits tend to become eliminated; the differential survival and reproduction of phenotypes.

(physics) Any of several general rules concerning the transitions between the states of a quantum mechanical system; they derive from the symmetry properties of the states and of their interactions

(US, basketball) The Monday in March on which the teams that participate in the NCAA Division I women's basketball tournament are selected.

(biology, evolution) A form of natural selection whereby traits that may be disadvantageous to the individual can be propagated when they are advantageous to the survival of a group as a whole.

plural of selection sort

(computing theory) A sorting algorithm that divides the input list into two sublists — items already sorted, and items not yet sorted — and gradually transfers elements from one list to the other.

A form of natural selection in which extreme values for a trait are favored over intermediate values, causing subpopulations of a single species within the same habitat to develop different adaptations.