Definition of cumulate in US English:



[with object]
Pronunciation /ˈkjumjəˌleɪt//ˈkyo͞omyəˌlāt/
  • 1Gather together and combine.

    ‘the systems cumulate data over a period of years’
    • ‘They soon became frustrated with the conservative style of the studio and began to cumulate a movement that would become the Japanese new wave, a breakaway from the conservative traditional film-making of the past.’
    • ‘Meta-analysis, however, cumulates the results of empirical studies statistically; thus, the form of the summary is numerical rather than verbal.’
    • ‘Although it offers a handy list of items in a particular area of research, it does little to integrate or cumulate them.’
    • ‘It can be harmful for disciplines if they do not cumulate real knowledge because short-term interests drive them.’
    • ‘Knowledge cumulation has also been hindered by the failure of authors to report the statistics needed to cumulate knowledge.’
    • ‘The data for twelve years, 1988 to 1999, were cumulated to have adequate frequencies in each price category.’
    • ‘We first cumulated these returns to obtain the cumulative sum unadjusted and market-adjusted returns for the selected aftermarket time horizons.’
    • ‘It is a film that cumulates its many parts to create something exceptional, and these individual elements only represent small ingredients in the delicious pie.’
    • ‘The individual results can be cumulated over time graphically to provide a summary of the experiment as a whole.’
    • ‘However, widespread adoption of such methods did not occur until he coined the term metaanalysis to describe quantitative techniques for cumulating results over studies.’
    • ‘We also define a coordinate, X, by cumulating the sum of one-dimensional displacements of all water molecules in the mentioned region every picosecond.’
    • ‘It is particularly misleading to cumulate the value of surpluses or tax cuts over a ten-year period in that the adding up process treats the 2011 estimate as though it should be given the same weight as the 2002 estimate.’
    gather, accumulate, assemble
    View synonyms
    1. 1.1no object Be gathered together and combined.
      ‘all unpaid dividend payments cumulate and are paid when earnings are sufficient’
      • ‘It seems to have cumulated into something bad, that I haven't talked to anyone about.’
      • ‘At her worst, she serves up a sludge of disparate data that do not cumulate to any discernible or persuasive argument.’
      • ‘Membership categories cumulate (one person can score in more categories of societies).’
      • ‘Now 5 or 10% may not sound like a lot, but it cumulates if you have repeated testing.’
      • ‘Figure 2 shows how this slight advantage for the HX group cumulates into a substantial difference at the end of the study.’
      • ‘Regulatory tolerance of go-for-broke risk-taking by insolvent institutions undermines the stability of a country's financial system and allows institutional losses to cumulate relentlessly.’
      • ‘This index represents cumulated deviation between the variance-adjusted culture score of partner countries.’
      • ‘We identify three primary ways through which discrimination might cumulate.’
      • ‘To a large extent, the modern world exists thanks to cumulated rational knowledge: the Greeks' recipe has worked.’
      • ‘The shaded and solid circles indicate cumulated light interceptions by the branches in the current year and previous year, respectively.’
      • ‘It would be genuine social and political progress if that understanding could induce timely reform to avoid rigidities cumulating into a decade-long crisis of capitalism until reforms are implemented.’
      • ‘Should there be a question of the practical value of these results, Table 6 (in Appendix) presents the rather dramatic consequences of a small effect which cumulates consistently over time.’
    2. 1.2as adjective cumulatedChemistry Denoting two double bonds attached to the same carbon atom.
      • ‘The potential energy of this system is very different from that of an all-atom force field and is related with cumulated harmonic energies of residue pairs.’


Pronunciation /ˈkyo͞omyələt//ˈkjumjələt/
  • An igneous rock formed by gravitational settling of particles in a magma.

    • ‘This is similar to cumulate rocks of the Sarmiento complex.’
    • ‘They comprise at least six large bodies which range in composition from peridotite cumulates through gabbros and norites to syenites, although the full compositional spectrum is not present in each intrusion.’
    • ‘Plutonic rocks can be dense, silica-poor and dark in colour, like most cumulates, or silica-rich and pale in colour like the melt remaining after cumulate formation.’
    • ‘There are differences between cumulate rocks and those finer-grained gabbros and dykes that represent liquid compositions.’
    • ‘Mottled anorthosite is found frequently associated with structures associated with fluid or residual magma movement and exhibits both gradational and cross-cutting relationships with host rock cumulates.’


Mid 16th century (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 century.