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

Let’s assume the haystack is approximately three feet wide, three feet long and eight feet high, or about 125,000 cubic inches in size (for reference, the interior of a Honda Civic is around 171,000 cubic inches). — Adam Kovac, Scientific American, 7 Nov. 2026

The world harvests about 4 billion cubic meters of wood each year, and demand is projected to approach 6 billion by 2050, but supply is already constrained. — Kari Stoever, Footwear News, 6 Nov. 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