Word: hartrees
Part of speech: Noun
Syllables: har
trees
Definition: Plural of hartree;  is the unit of energy in the Hartree atomic units system, named after the British physicist Douglas Hartree
Morphemes:
Affix: hartree
Language: en
PoS: Noun
Meaning: 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.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form regular plurals of nouns.