1
: having the form of a cube : cubical
2
a
: relating to the cube considered as a crystal form
3
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
: a cubic curve, equation, or polynomial
Examples of cubic in a Sentence
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Anniek Bao, CNBC, 20 May 2026
The average capacity for a conventional oven is 3 cubic feet, but the biggest models are as large as 6 cubic feet.
—Bestreviews, Mercury News, 20 May 2026
Calvin Finch, San Antonio Express-News, 30 Jan. 2026
The Ioniq 5 has practical, sufficient cargo space, 27.2 cubic behind the rear seats, 59.3 cubic feet when the seats are folded flat.
—James Raia, Mercury News, 6 July 2025
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Adjective
In IconArrows pointing outwards Power of Siberia 1 system delivered approximately 38 billion cubic meters of gas to China in 2025 and both countries agreed to expand its annual capacity further.
—Anniek Bao, CNBC, 20 May 2026
The average capacity for a conventional oven is 3 cubic feet, but the biggest models are as large as 6 cubic feet.
—Bestreviews, Mercury News, 20 May 2026
Noun
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
The Ioniq 5 has practical, sufficient cargo space, 27.2 cubic behind the rear seats, 59.3 cubic feet when the seats are folded flat.
—James Raia, Mercury News, 6 July 2025
See All Example Sentences for cubic
Cite this Entry
“Cubic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cubic. Accessed 21 May. 2026.
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