cubic

American  

[kyoo-bik] / ˈkju bɪk /

adjective

1. having three dimensions; solid.

2. having the form of a cube; cubical.

3. pertaining to the measurement of volume.

   the cubic contents of a vessel.

4. pertaining to a unit of linear measure that is multiplied by itself twice to form a unit of measure for volume.

   cubic foot; cubic centimeter; cubic inch; cubic meter.

5. Mathematics. of or relating to the third degree.

6. Crystallography. belonging or pertaining to the isometric system of crystallization.

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noun

1. Mathematics. a cubic polynomial or equation.

cubic British  

/ ˈkjuːbɪk /

adjective

1. having the shape of a cube

2. 1. having three dimensions

   2. Abbreviation: cu., c. denoting or relating to a linear measure that is raised to the third power

      a cubic metre

3. maths of, relating to, or containing a variable to the third power or a term in which the sum of the exponents of the variables is three

4. Also: isometric, regular. crystallog relating to or belonging to the crystal system characterized by three equal perpendicular axes. The unit cell of cubic crystals is a cube with a lattice point at each corner ( simple cubic ) and one in the cube's centre ( body-centred cubic ), or a lattice point at each corner and one at the centre of each face ( face-centred cubic )

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noun

1. maths

   1. a cubic equation, such as x ³ + x + 2 = 0

   2. a cubic term or expression

cubic Scientific  

/ kyo̅o̅′bĭk /

1. Referring to a volume unit of measurement.

2. Involving a number or a variable that has been raised to the third power.

3. Relating to a crystal having three axes of equal length intersecting at right angles. The mineral pyrite has cubic crystals.

4. Also called isometric

5. See illustration at crystal

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Other Word Forms

• cubicity
  noun
• subcubic
  adjective
• uncubic
  adjective

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Etymology

Origin of cubic

1490–1500; earlier cubik < Latin cubicus < Greek kybikós. See cube ¹, -ic

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Example Sentences

See Examples For:

cubic

Neither one will put a cubic foot of gas in a New England furnace before the snow melts.

From MarketWatch ● Oct. 28, 2026

This propelled further gas exploration both onshore and offshore, with the largest single discovery of 2.7 trillion cubic feet of natural gas in 2016.

From BBC ● Oct. 28, 2026

U.S. gas output was up 4% in the first half of the year, and EIA expects average daily output of 122.5 billion cubic feet in 2026, a record.

From The Wall Street Journal ● Oct. 21, 2026

Coastal engineers estimate that it’ll take millions of cubic yards of sand to fully replenish the city’s coastline.

From Los Angeles Times ● Oct. 20, 2026

Similarly, there are 153 x 123 x 5,2803 grains per cubic mile.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos

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Related Words

• cuboid
• cuboidal

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