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cubic kilometer

cubic kilometer

3 3.7
The amount of space in a cube one kilometer on each side
  • noun
  • /ˈkjuːbɪk ˈkɪləmɪtər/
translation icon : kilómetro cúbico
  • Situated as the downstream country in the Nile River system, Egypt receives 65.5 of the 66 cubic kilometers per year of transboundary flows of renewable surface water.
  • cubic kilometers per year

Examples

  • Greenland's ice sheet is losing mass at about 300 cubic kilometers per year.

    Blog text (8)
  • The World Water Report estimates that global wastewater production is roughly 1,500 cubic kilometers per year.

    Academic text (2003)
  • The average annual rate of increase was 2.0 to 0.7 cubic kilometers per year.

    Blog text (33)
  • Therefore, 50 million cubic kilometers of water weigh 50 million billion metric tonnes.

    Academic text (2011)
  • In the decade from 1980 to 1990, June ice volume dropped by around 3.8 cubic kilometers.

    Blog text (21)
  • From 1979 to 2000, the average summer ice volume in the Arctic was 12,000 cubic kilometers.

    Blog text (4)
  • If you factor in the height of the turbines, the farm occupies a volume of almost 22 cubic kilometers.

    Academic text (2010)
  • A cubic kilometer contains 1 billion cubic meters. A cubic meter of water weighs 1 metric tonne.

    Academic text (2011)
  • At the same time, the storage capacity of Sudan's four main dams on the Nile system has been reduced from a planned 8.73 cubic kilometers to 6.9 cubic kilometers due to increasing sedimentation.

    Academic text (2008)
  • The whole ocean contains about 1.3 billion cubic kilometers of water.

How Big

cubic kilometer
3 3.7
cubic meter
9 2.7
cubic centimeter
  • Specialized
4 3.1

Surface Forms

Morphology

cubic + kilometer

The meaning 'a cube with edges one kilometer long (a unit of volume)' is directly and compositionally derived from 'cubic' (relating to a cube or third power) + 'kilometer' (a unit of length). This adjective+unit pattern transparently signals a volume measure and is cross-linguistically common, so a learner who knows both constituents should be able to infer the MWE meaning.

Etymology

Cubic kilometer pictures a cube whose sides are each one kilometer long, and the word cubic shows we mean length, width, and height together. So, it is used as a unit for very large amounts of 'volume', for example when talking about lakes, ice, or reservoirs.