quantum
noun /ˈkwɒntəm/
/ˈkwɑːntəm/
(plural quanta
(physics /ˈkwɒntə/
/ˈkwɑːntə/
)- a very small quantity of electromagnetic energy
量子 Collocations DictionaryQuantum is used before these nouns:- jump
- leap
- mechanics
- …
词源mid 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.