| 单词 | quantum |
| 释义 | quantum /kwon"teuhm/, n. , pl. quanta /-teuh/, adj. n. 1. quantity or amount: the least quantum of evidence. 2. a particular amount. 3. a share or portion. 4. a large quantity; bulk. 5. Physics. a. the smallest quantity of radiant energy, equal to Planck's constant times the frequency of the associated radiation. b. the fundamental unit of a quantized physical magnitude, as angular momentum. adj. 6. sudden and significant: a quantum increase in productivity. [1610-20; n. use of neut. of L quantus how much] |
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