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Pronunciation varies by accent · noun
The atomic unit of energy, defined as 2R_∞hc, where R_∞ is the Rydberg constant, h is the Planck constant and c is the speed of light. It equals 4.35974 attojoules..
Use hartree when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Hartree means The atomic unit of energy, defined as 2R_∞hc, where R_∞ is the Rydberg constant, h is the Planck constant and c is the speed of light. It equals 4.35974 attojoules..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use hartree where its definition matches the intended context.
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