cubic

1 of 2

adjective

cu·​bic ˈkyü-bik 

1

: having the form of a cube : cubical

2

a

: relating to the cube considered as a crystal form

b

: isometric sense 1

3

a

: 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

cubic

2 of 2

noun

: a cubic curve, equation, or polynomial

Examples of cubic in a Sentence

Recent Examples on the Web

Adjective

City Manager Andy Hall said San Clemente faces a sand deficit of about 3 million cubic yards. — ABC News, 27 Sep. 2026

The water flow is being managed at Canton Lake, and the Corps of Engineers said the goal is to have between 600 and 730 cubic feet of water per second leave through sluice gates during the greatest period of flow. — Dale Denwalt, Oklahoman, 22 Sep. 2026

Noun

In Texas, Bedrock is working with Champion Site Prep on a multimillion-cubic-yard earthwork project. — Kurt Knutsson, FOXNews.com, 6 Sep. 2026

If my math is accurate, 1 cubic yard of compost will provide enough top dressing for 650 square feet of lawn. — Calvin Finch, San Antonio Express-News, 30 Jan. 2026

Word History

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1799, in the meaning defined above

Phrases Containing cubic

• cubic equation
• cubic measure
• cubic zirconia
• cubic zirconium

Rhymes for cubic

• pubic
• cherubic
• suprapubic

Kids Definition

cubic

adjective

cu·​bic

ˈkyü-bik

variants also cubical

-bi-kəl

1

: having the form of a cube

2

a

: having length, width, and height

b

: relating to volume

3

: being or having the volume of a cube whose edge is a specified unit

cubic centimeter

cubic inch

cubically

-bi-k(ə-)lē

adverb