Ultraviolet

/ˌʌltrəˈvaɪəlɪt/

Meaning & Definition

noun

Ultraviolet radiation or light.

The ultraviolet generated by the lamp is extensively used in scientific experiments.

A type of light or radiation employed in various applications including sterilization and fluorescence.

Ultraviolet has many applications in water purification processes.

adjective

Relating to electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays, typically in the range of 10 nm to 400 nm.

Ultraviolet light can cause sunburn if exposure is prolonged.

Describing the portion of the electromagnetic spectrum that is beyond the violet end of the visible spectrum.

The ultraviolet rays emitted by the sun can be harmful to skin.

Used to describe instruments or equipment that generate or detect ultraviolet radiation.

The scientists used an ultraviolet laser to study the properties of the material.

From the Latin 'ultra-' meaning 'beyond' and 'violet', referring to the color violet.

ultraviolet rays

Radiation from the sun that can be harmful in excessive amounts.

ultraviolet light

Light that is beyond the violet end of the visible spectrum.

ultraviolet sterilization

A method of using ultraviolet light to kill bacteria and viruses.

infrared

Electromagnetic radiation with wavelengths longer than visible light.

radiation

The emission of energy as electromagnetic waves.

You need to apply sunscreen; the UV is really high today.

Black light

We used a black light to make the decorations glow.