Search Dictionary
Definition of kilojoule

kilojoule

/ˈkɪl.oʊˌdʒuːl/
kil · o · joule
Plural:kilojoules
JUMP TO:

kilojoule Lexical Profile

kilojoule Game Scores & Validity

• noun

1

A metric unit of energy or work equal to 1,000 joules (or approximately 0.239 dietary kilocalories), commonly used in physics and on food nutrition labels to measure the energy content of food.

Example

"The nutrition label on the cereal box lists the energy content in both calories and kilojoules per serving."

• Nearby Words

kilobyte
kilocalorie
kilogram
kilojoule
kiloliter
kilometer
kilowatt

Word Origin & Etymology

Formed in the late 19th century by combining the metric prefix 'kilo-' (from Ancient Greek 'chilioi', meaning 'thousand') with 'joule', named in honor of the English physicist James Prescott Joule (1818–1889).

Cite this Entry

Wordmom. (2026). Definition of Kilojoule. In Wordmom Dictionary. Retrieved Nov 1, 2026, from https://wordmom.com/dictionary/kilojoule
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.