energy density
Americannoun
Etymology
Origin of energy density
First recorded in 1955–60
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.
It’s also why diesel is used to power heavier machines, such as trucks, tractors and even ships, where the energy density of the fuel matters more.
From The Wall Street Journal ● Oct. 1, 2026
The findings suggest that a low-fat vegan diet can substantially reduce dietary energy density, allowing people to consume fewer calories and lose weight without intentionally restricting their calorie intake.
From Science Daily ● Aug. 17, 2026
"However, today's commercial sodium-ion cells generally have lower energy density than the best lithium-ion cells, and the technology is less mature overall," said Schütte.
From Science Daily ● Jun. 21, 2026
New battery tech must compete on lifespan, durability, energy density, safety and cost—which is dependent on massive scale.
From The Wall Street Journal ● Jun. 19, 2026
Ordinary matter, which has a positive energy density, gives space-time a positive curvature, like the surface of a sphere.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
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