What is the meaning of Ultraviolet?

Of electromagnetic radiation beyond (higher in frequency than) light visible to the human eye; radiation with wavelengths from 380 to 10 nanometres.

Relating to very high energies or very small distances or time spans.

Ultraviolet colour.

ultraviolet

ultraviolet

ultraviolet (light)

ultravioet (of electromagnetic radiation with wavelengths from 380 to 10 nanometres)

ultraviolet (ultraviolet color)

ultraviolet

Source: wiktionary.org