Selettore

Selettore is an Italian noun meaning “selector” or “chooser.” In technical and everyday language it denotes a device, component, or mechanism that selects one option from a set of alternatives. The term is used across fields such as electronics, computing, and system operation to indicate a control or pattern that routes or identifies a chosen item.

In electronics and electrical engineering, a selettore refers to a device that routes signals or power according to a user setting. This includes mechanical devices such as rotary, toggle, or slide switches, as well as electronic ones like multiplexers or analog switches that function as digital selectors. Typical applications include mode or input selection on equipment, channel routing in audio or radio systems, and test benches.

In computing and web development, the concept appears as a means to locate elements or data. In Italian technical writing, CSS selettori identify HTML elements to which style rules apply; examples include element selectors, class selectors, and descendant selectors. More generally, selectors appear in query languages such as XPath or JSONPath as expressions that select a subset of a document or data structure.

Beyond technical contexts, an eloquent use of the term can refer to a person or mechanism that selects, filters, or chooses options in a broader sense, such as an input selector on consumer devices or a process that selects among applicants.