definitions
• synonyms

# cubic

[kyoo-bik]
See more synonyms on Thesaurus.com
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.
noun
1. Mathematics. a cubic polynomial or equation.

## Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}cubic

1490–1500; earlier cubik < Latin cubicus < Greek kybikós. See cube1, -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for cubic

### Historical Examples

• #### To express the cubic content of a turnip, you must be all round it at once.

Alarms and Discursions

G. K. Chesterton

• #### In a cubic foot there will of course be 1728 times that number.

The Machinery of the Universe

Amos Emerson Dolbear

• #### That a mass of ice about a cubic yard in size had fallen at Candeish, India, 1828.

British Dictionary definitions for cubic

# cubic

1. having the shape of a cube
1. having three dimensions
2. denoting or relating to a linear measure that is raised to the third powera cubic metre Abbreviation: cu., c
2. 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
3. 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)
noun
1. maths
1. a cubic equation, such as x ³ + x + 2 = 0
2. a cubic term or expression
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Word Origin and History forcubic

1550s, from Middle French cubique (14c.), from Latin cubicus, from Greek kybikos, from kybos "cube" (see cube (n.)). Related: Cubical.

Online Etymology Dictionary, © 2010 Douglas Harper

cubic in Science

# cubic

[kyōōbĭk]
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. Also called isometric See illustration at crystal.