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potential well

Line breaks: po¦ten|tial well

Entry from British & World English dictionary

Definition of potential well in English:

noun

Physics
A region in a field of force, in particular the region in which an atomic nucleus is situated, in which the potential is significantly lower than at points immediately outside it, so that a particle in it is likely to remain there unless it gains a relatively large amount of energy.

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Word of the day tenebrous
Pronunciation: ˈtenəbrəs
adjective
dark; shadowy or obscure