Meaning & use
thermodynamics
The branch of physics that studies heat, energy, and the way they transform and move between systems.
See it in a sentence
Thermodynamics explains why a hot cup of coffee gradually cools to room temperature.
Students learned the laws of thermodynamics before studying engines in more detail.
A note on using this word
Used as a singular mass noun despite the plural-looking ending, as in 'thermodynamics is a core physics topic.'
Words with a similar meaning
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