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Definition of quantum noun from the Oxford Advanced Learner's Dictionary

quantum

noun
 
/ˈkwɒntəm/
 
/ˈkwɑːntəm/
(plural quanta
 
/ˈkwɒntə/
 
/ˈkwɑːntə/
)
(physics)
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  1. a very small quantity of electromagnetic energy
    Oxford Collocations DictionaryQuantum is used before these nouns:
    • jump
    • leap
    • mechanics
    • …
    See full entry
    Word Originmid 16th cent. (in the general sense ‘quantity’): from Latin, neuter of quantus ‘how great, how much’. The current sense dates from the early 20th cent.
See quantum in the Oxford Advanced American DictionarySee quantum in the Oxford Learner's Dictionary of Academic English
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dizzy
adjective
 
 
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