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
Most are transparent and only birds can see the ultraviolet reflection that wards them off.
—
Cnn.com Wire Service, The Mercury News, 24 Apr. 2024
Take their vision, for example: Among those species that have been studied, scientists have found evidence of broad-spectrum color vision, sometimes including ultraviolet wavelengths invisible to the human eye.
—Bill Wasik and Monica Murphy Gabra Zackman Emma Kehlbeck Lance Neal, New York Times, 23 Apr. 2024
The lenses of solar eclipse glasses are made of black polymer, or resin infused with carbon particles, that blocks nearly all visible, infrared and ultraviolet light, according to The Planetary Society.
—Ben Morse, CNN, 5 Apr. 2024
These glasses contain filters certified to reduce the visible sunlight to a level that won't damage your eyes and block ultraviolet and infrared radiation.
—Nora Colomer, Fox News, 20 Mar. 2024
Just as ultraviolet radiation, or UV rays, make sunscreen a necessity lest one risk skin cancer, gamma rays would also require a form of physical protection.
—Max Bennett, Discover Magazine, 18 Mar. 2024
Tanning bed lights, on the other hand, emit UVA (or ultraviolet A) rays, which are linked to skin aging and cancer, according to the U.S. Environmental Protection Agency.
—Danielle Sinay, Glamour, 23 Jan. 2024
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
Cnn.com Wire Service, The Mercury News, 24 Apr. 2024
Take their vision, for example: Among those species that have been studied, scientists have found evidence of broad-spectrum color vision, sometimes including ultraviolet wavelengths invisible to the human eye.
—Bill Wasik and Monica Murphy Gabra Zackman Emma Kehlbeck Lance Neal, New York Times, 23 Apr. 2024
The lenses of solar eclipse glasses are made of black polymer, or resin infused with carbon particles, that blocks nearly all visible, infrared and ultraviolet light, according to The Planetary Society.
—Ben Morse, CNN, 5 Apr. 2024
These glasses contain filters certified to reduce the visible sunlight to a level that won't damage your eyes and block ultraviolet and infrared radiation.
—Nora Colomer, Fox News, 20 Mar. 2024
Just as ultraviolet radiation, or UV rays, make sunscreen a necessity lest one risk skin cancer, gamma rays would also require a form of physical protection.
—Max Bennett, Discover Magazine, 18 Mar. 2024
Tanning bed lights, on the other hand, emit UVA (or ultraviolet A) rays, which are linked to skin aging and cancer, according to the U.S. Environmental Protection Agency.
—Danielle Sinay, Glamour, 23 Jan. 2024
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
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 3 May. 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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