[with obj.]gather together and combine 堆积;积累 the systems cumulate data over a period of years. 该系统积累了数年的资料。 ■[no obj.]be gathered together and combined 被累积;被集聚 all unpaid dividend payments cumulate and are paid when earnings are sufficient. 所有未付的股息被累积至有足够赢利时支付。 ■[as adj. cumulated](Chemistry)denoting two double bonds attached to the same carbon atom (化)积累(表示附于同一碳原子的两个双键)
noun
(Geology)an igneous rock formed by gravitational settling of particles in a magma (地质)堆积岩
派生 cumulation noun 语源
mid 16th cent. (as a verb in the sense 'gather in a heap'): from Latin cumulat- 'heaped', from the verb cumulare, from cumulus 'a heap'. Current senses date from the early 20th cent