cu·bic | \ˈkyü-bik \

Definition of cubic 

(Entry 1 of 2)

1 : having the form of a cube : cubical

2a : relating to the cube considered as a crystal form

b : isometric sense 1

3a : three-dimensional

b : being the volume of a cube whose edge is a specified unit cubic inch

4 : of third degree, order, or power a cubic polynomial



Definition of cubic (Entry 2 of 2)

: a cubic curve, equation, or polynomial

Examples of cubic in a Sentence

Recent Examples on the Web: Adjective

Featuring a cubic design and adorned with parquet flooring, the houseboat holds two bedrooms, a kitchen and dining area that sits upstairs from the living room, and a space that currently serves as a laundry room. Alex Bazeley, Curbed, "Luxe Danish houseboat with terrace yours for $925K," 29 June 2018 Just 500 grams of platelets can reduce the amount of cement needed to make a cubic metre of concrete by about 40kg—a saving of 10%. The Economist, "Making buildings, cars and planes from materials based on plant fibres," 14 June 2018 American customers will buy it again for the 2019 model year The Super Cub is a throwback to the Honda 50, a reference the size of its small engine in cubic centimeters, which has since gotten more powerful over the years. David Pan, USA TODAY, "Honda Super Cub motorcycle, most popular vehicle ever, returns to the U.S.," 8 June 2018 According to the Volvo Ocean Race findings, there were between nine and 26 particles of microplastic per cubic metre near Point Nemo. Rob Hodgetts, CNN, "Sailor sacrifices sleep for science to save the planet," 8 June 2018 Imagine a molecule trapped in cubic mesh with roughly equal-sized compartments. Laney Ruckstuhl,, "UMass Amherst researchers discover gel-like substance can prevent DNA from diffusing," 8 June 2018 There is more cubic footage to the back end of a Nissan NV high-roof van than in some junior studio apartments in San Francisco. Mark Maynard,, "Nissan NV 3500 High Roof: The sky is the limit," 1 June 2018 Cardiovascular disease deaths increased 17% for every 10 micrograms per cubic meter increase in long-term average particulate matter exposure among the people who did not closely follow the diet, compared to 5% among the people who did. Alexandra Sifferlin, Time, "Can Your Diet Reduce the Effects of Air Pollution? Here's What a New Study Says," 21 May 2018 Wade said a third facility is necessary in Maryland to pump an additional 300 million cubic feet of natural gas through the pipeline to serve more WGL customers and a planned power plant in Brandywine. Teo Armus, Washington Post, "Dominion may move the compressor it planned to build across from Mount Vernon," 3 July 2018

Recent Examples on the Web: Noun

Every 10-microgram-per-cubic-meter increase in the concentration of breathable particulate matter is associated with an increase of about 9 percent in infant mortality, an effect consistent over the 15-year study period, the study’s authors say. Washington Post, "Africa’s pollution killing thousands of infants, study says," 27 June 2018 The highest levels of microplastic found so far in the race was 357 particles per cubic metre recorded from the South China Sea, east of Taiwan. Rob Hodgetts, CNN, "Sailor sacrifices sleep for science to save the planet," 8 June 2018 Every Tuesday, Thursday and Saturday, Valparaiso Public Works employees will load compost and mulch from 9 a.m. to 2 p.m. The charge for compost loading is $10 per cubic yard, payment by check or money order only. Staff Report, Post-Tribune, "Community news," 3 May 2018 Seminole County, which had a pre-storm contract to pay $7.49 per cubic yard to hauler Ceres Environmental, reworked the pact to pay the company 11 percent more — a raise of about 82 cents per cubic yard to $8.31, County Manager Nicole Guillet said. Stephen Hudak,, "Trump orders feds to pay more to help Florida cities, counties pay for Hurricane Irma debris," 4 Oct. 2017 The charge for compost loading is $10 per cubic yard, payment by check or money order only. Chicago Tribune,, "Neighbors calendar," 29 May 2017 Their namesake cubic frames contain up to 15 tentacles at the corners, with each growing as much as 10 feet long, all lined with thousands of stinging cells— Daniel Jameson, CNT, "The 10 Most Dangerous Animals in the World," 10 July 2017 The charge for compost loading is $10 per cubic yard, payment by check or money order only. Chicago Tribune,, "Neighbors calendar," 29 May 2017 The charge for compost loading is $10 per cubic yard, payment by check or money order only. Post-Tribune, "Community calendar," 13 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cubic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cubic


15th century, in the meaning defined at sense 1


1799, in the meaning defined above

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Last Updated

6 Oct 2018

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The first known use of cubic was in the 15th century

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English Language Learners Definition of cubic

: in the shape of a cube


cu·bic | \ˈkyü-bik \

Kids Definition of cubic

1 : having the shape of a cube

2 : being the volume of a cube whose edge has a specified length a cubic centimeter

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