Search Dictionary
Definition of ultraviolet

ultraviolet

/ˌʌl.trəˈvaɪ.ə.lət/
ul · tra · vi · o · let
Plural:ultraviolets
JUMP TO:

ultraviolet Lexical Profile

ultraviolet Game Scores & Validity

• adjective

1

Having a wavelength shorter than that of the violet end of the visible spectrum and longer than that of X-rays.

Example

"Sunglasses with proper protection help shield your eyes from harmful ultraviolet rays."

Synonyms
View all synonyms for ultraviolet
Antonyms
View all antonyms for ultraviolet

• noun

1

Electromagnetic radiation having a wavelength shorter than visible violet light and longer than X-rays, invisible to the human eye.

Example

"Certain insects, such as honeybees, can perceive patterns on flowers that reflect ultraviolet."

Synonyms
View all synonyms for ultraviolet
Antonyms
View all antonyms for ultraviolet

• Rhymes for ultraviolet

• Nearby Words

ultrathin
ultraviolence
ultraviolent
ultraviolet
ultrawide
ulyanovsk
um

Word Origin & Etymology

Coined in the mid-19th century by combining the Latin prefix ultra- ('beyond') with 'violet', referring to electromagnetic wavelengths situated just beyond the violet end of the visible light spectrum.

Cite this Entry

Wordmom. (2026). Definition of Ultraviolet. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ultraviolet
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.