viditelní

Viditelné is a Czech adjective meaning visible; it denotes that something can be perceived by the human eye or is otherwise perceivable under given conditions. It is commonly used to describe objects, phenomena, or information that can be seen, in contrast to what is hidden or invisible.

In Czech, viditelné is used with neuter singular nouns such as světlo (light) and spektrum, and it also appears in other gender and number forms according to standard grammar. The term can be used literally or figuratively in scientific, technical, or everyday contexts to indicate perceptibility.

In science and everyday language, viditelné often appears in phrases like viditelné světlo (visible light) or viditelné spektrum, referring to the portion of the electromagnetic spectrum that can be seen by the human eye, roughly 380 to 750 nanometers. In computing and UI design, it describes elements that are rendered on screen and visible to users, as opposed to hidden elements.

Etymology: viditelné derives from the verb vidět (to see) and the adjective stem viditeln-, with cognates in related Slavic languages. The noun form viditelnost means visibility—the state or condition of being visible.

Related terms include viditelnost, vidět, viditelný, and neviditelný.