Dictionary.com
Thesaurus.com
Synonyms

mass-energy

British  

noun

  1. mass and energy considered as equivalent and interconvertible, according to the theory of relativity

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

According to the Standard Model and previous mass measurements, the W boson should weigh about 80.357 billion electron volts, the unit of mass-energy favored by physicists.

From New York Times Jun. 13, 2022

This “missing” mass is the mass defect, which has been converted into the binding energy that holds the nucleus together according to Einstein’s mass-energy equivalence equation, E = mc2.

From Textbooks Feb. 14, 2019

Limitations are placed on what can occur by known conservation laws, such as conservation of mass-energy, momentum, and charge.

From Textbooks Aug. 12, 2015

To go back in time by one year, unfortunately, you'd need a loop containing about half the mass-energy of an entire galaxy.

From Time Magazine Archive

Physicists theorize that up to 27 percent of the mass-energy content of the universe is composed of what they refer to as dark matter.

From "We Are the Ants" by Shaun David Hutchinson

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training