# mass-energy equation

mass-energy equation
/mas"en"euhr jee/, Physics.
the equation, E=mc2, formulated by Albert Einstein, expressing the equivalence between mass and energy, where E is energy, m is mass, and c is the velocity of light.
[1940-45]

* * *

Universalium. 2010.

### Look at other dictionaries:

• mass-energy equation — mass′ en′ergy equa tion n. phs the equation, E = mc2, formulated by Albert Einstein, expressing the equivalence of mass and energy, where E is energy, m is mass, and c is the velocity of light • Etymology: 1940–45 …   From formal English to slang

• mass-energy equation — ˈ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ noun : an equation for the interconversion of mass and energy: E = mc2 where E is energy in ergs, m is mass in grams, and c is the velocity of light in centimeters per second called also Einstein equation; compare conservation… …   Useful english dictionary

• mass-energy equivalence — noun (physics) the principle that a measured quantity of mass is equivalent (according to relativity theory) to a measured quantity of energy • Topics: ↑physics, ↑natural philosophy • Hypernyms: ↑principle, ↑rule * * * mass energy equivalence …   Useful english dictionary

• Mass–energy equivalence — E=MC2 redirects here. For other uses, see E=MC2 (disambiguation). 4 meter tall sculpture of Einstein s 1905 E = mc2 formula at the 2006 Walk of Ideas, Berlin, Germany In physics, mass–energy equivalence is the concept that the …   Wikipedia

• mass-energy equivalence — /mæs ˌɛnədʒi iˈkwɪvələns/ (say mas .enuhjee ee kwivuhluhns) noun the theory that mass and energy are directly related; the total energy related to a mass equals the mass times the square of the speed of light in a vacuum, expressed as the… …

• mass-en|er|gy equation — «MAS EHN uhr jee», an equation expressing the relation of mass and energy, formulated by Albert Einstein in 1905: E = mc2; Einstein equation. E = the energy in ergs; m = the mass in grams; c = the velocity of light in centimeters per second.… …   Useful english dictionary

• Einstein's mass-energy relation — Relationship between mass (m) and energy (E) in Albert Einstein s special theory of relativity, expressed E = mc2, where c equals 186,000 mi/second (300,000 km/second), the speed of light. Whereas mass and energy were viewed as distinct in… …   Universalium

• energy-mass equation — same as mass energy equation (see ↑mass energy equivalence under ↑mass1). • • • Main Entry: ↑energy …   Useful english dictionary

• Mass in special relativity — incorporates the general understandings from the concept of mass energy equivalence. Added to this concept is an additional complication resulting from the fact that mass is defined in two different ways in special relativity: one way defines… …   Wikipedia