ultraviolet rays — electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays
Part of speech: NOUN
Definition: electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays
Pronunciation (IPA): /ˌʌltrəˈvaɪələt reɪz/
Example Sentences
- My vampire friend complained that ultraviolet rays are ruining his night job prospects.
- Sunscreen is essential for protecting your skin from harmful ultraviolet rays.
- The ozone layer acts as Earth's natural shield against ultraviolet rays.
ultraviolet rays
NOUN[/ˌʌltrəˈvaɪələt reɪz/]
electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays
She applies sunscreen because ultraviolet rays from the summer sun damage skin.
Even on sunny days, choose safer ways from ultraviolet rays!
Got the picture? Now let's practice.
🎤Pronunciation
🌳Etymology
Origin
The term derives from Latin 'ultra' meaning 'beyond' or 'extremely,' combined with 'violet,' referring to the violet color of visible light. Ultraviolet rays were named for their position beyond the violet end of the visible light spectrum, invisible to the human eye.
Breakdown
ultra- (beyond, extreme) + violet (violet color, from Latin violeta) + ray (beam of light). The compound describes electromagnetic radiation existing beyond the violet wavelengths of visible light.
🎵Rhyme
🔗Collocations
📝Examples
“My vampire friend complained that ultraviolet rays are ruining his night job prospects.”
“Sunscreen is essential for protecting your skin from harmful ultraviolet rays.”
“The ozone layer acts as Earth's natural shield against ultraviolet rays.”
“Scientists use special equipment to study the effects of ultraviolet rays on plant growth.”
📚Related Words
Want to master 27,000+ words?
Sign up free for flashcards & quizzes.