ultraviolet
adjective
ul·tra·vi·o·let
ˌəl-trə-ˈvī-(ə-)lət 
1
: situated beyond the visible spectrum at its violet end
—used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
2
: relating to, producing, or employing ultraviolet radiation
ultraviolet
noun
Examples of ultraviolet in a Sentence
Recent Examples on the Web
These include sterilizing all surgical equipment, using ultraviolet light to clean the operating room, following strict protocols for surgical attire and monitoring airflow within the operating room.
—
Chloe Bryson-Cahn, The Conversation, 10 Apr. 2024
Its dimmer light encourages the pupil to dilate, leaving its cells vulnerable to ultraviolet light in the precise place where the eye discerns fine detail in a beautiful landscape or face.
—Ross Andersen, The Atlantic, 8 Apr. 2024
That international safety standard, which is set by the International Organization for Standardization, means the glasses reduce visible sunlight to a safe level, and block ultraviolet and infrared radiation, according to the American Astronomical Society website.
—Kerry Breen, CBS News, 6 Apr. 2024
The artist achieves this effect by dropping strands of a soft material onto an exposure unit, which uses ultraviolet light to fix an emulsion onto a template for printing.
—Mark Jenkins, Washington Post, 15 Mar. 2024
Adler said there's likely a main ingredient in these medications that gets activated by ultraviolet light.
—Aria Bendix, NBC News, 8 Mar. 2024
Most mammals also lost a genetic pathway still carried by birds and reptiles that repairs the damage from ultraviolet rays to DNA.
—Joshua Rapp Learn, Discover Magazine, 2 Jan. 2024
Hubble is sensitive to visible and ultraviolet light, while Webb's sensors are tuned to detect infrared light.
—Stephen Clark, Ars Technica, 8 Dec. 2023
Equipped with special lenses that filter out most of the sun’s light, particularly the ultraviolet and infrared rays, this gazing gear provides adequate visual protection to allow for direct viewing.
—Max Bennett, Discover Magazine, 26 Mar. 2024
Chloe Bryson-Cahn, The Conversation, 10 Apr. 2024
Its dimmer light encourages the pupil to dilate, leaving its cells vulnerable to ultraviolet light in the precise place where the eye discerns fine detail in a beautiful landscape or face.
—Ross Andersen, The Atlantic, 8 Apr. 2024
That international safety standard, which is set by the International Organization for Standardization, means the glasses reduce visible sunlight to a safe level, and block ultraviolet and infrared radiation, according to the American Astronomical Society website.
—Kerry Breen, CBS News, 6 Apr. 2024
The artist achieves this effect by dropping strands of a soft material onto an exposure unit, which uses ultraviolet light to fix an emulsion onto a template for printing.
—Mark Jenkins, Washington Post, 15 Mar. 2024
Adler said there's likely a main ingredient in these medications that gets activated by ultraviolet light.
—Aria Bendix, NBC News, 8 Mar. 2024
Most mammals also lost a genetic pathway still carried by birds and reptiles that repairs the damage from ultraviolet rays to DNA.
—Joshua Rapp Learn, Discover Magazine, 2 Jan. 2024
Hubble is sensitive to visible and ultraviolet light, while Webb's sensors are tuned to detect infrared light.
—Stephen Clark, Ars Technica, 8 Dec. 2023
Equipped with special lenses that filter out most of the sun’s light, particularly the ultraviolet and infrared rays, this gazing gear provides adequate visual protection to allow for direct viewing.
—Max Bennett, Discover Magazine, 26 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ultraviolet.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Ultraviolet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraviolet. Accessed 19 Apr. 2024.
Copy CitationKids Definition
ultraviolet
adjective
ul·tra·vi·o·let
ˌəl-trə-ˈvī-ə-lət
1
: located beyond the visible spectrum at its violet end and having a wavelength shorter than those of visible light but longer than those of X-rays
2
: relating to, producing, or using ultraviolet radiation
ultraviolet
noun
Medical Definition
ultraviolet
1 of 2 adjective
ul·tra·vi·o·let
ˌəl-trə-ˈvī-(ə-)lət
1
: situated beyond the visible spectrum at its violet end
—used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays
2
: relating to, producing, or employing ultraviolet radiation
ultraviolet
2 of 2 noun
: ultraviolet radiation
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