1. An act of choosing someone or something from a wide variety of others: "Selections that result because they are regarded with special favor or liking."
2. A carefully chosen or representative collection of people or things: "A selection of things chosen or the offerings to be chosen from among other similar items."
3. A natural or artificial process that favors or induces survival and perpetuation of one kind of organism over others that die or fail to produce offspring: "A distinct selection of a plant, sexual or asexual in origin, selected and propagated for monetary reasons or beauty."