Word
cubic
Phoneticscu·bic, stress on the first syllable
US/ˈkjubɪk/
UK/kjˈuːbɪk/
Definitions
01units of volume
B2 · Upper Intermediate Mathematics Technical
adj. used with units of length to measure the volume of a three-dimensional space.
adj. denoting a unit of volume equal to the volume of a cube whose side is one unit of length.
“The small swimming pool holds about thirty cubic metres of water.”
“The shipping container has a total capacity of sixty-seven cubic metres, though practical loading constraints often reduce the usable volume.”
Usage
Always placed before the unit of measurement.
02math equations
C1 · Advanced Mathematics Academic · Technical
adj. relating to a mathematical equation where the highest power is three.
adj. relating to a polynomial or equation of the third degree, involving a variable raised to the power of three.
“The students learned how to solve a cubic equation in their advanced math class.”
“The researcher utilised a cubic function to model the non-linear growth observed in the early stages of the chemical reaction.”
Usage
Typically modifies nouns like 'equation', 'function', or 'polynomial'.
03shape or symmetry
C2 · Proficiency Science Technical
adj. having the shape of a cube or having three equal sides at right angles.
adj. having three equal axes at right angles to each other, especially in crystallography.
Español:cúbico
“Salt crystals often have a simple cubic structure that you can see under a microscope.”
“The mineral specimen was identified by its distinct cubic cleavage, a characteristic common to galena and halite crystals.”
Synonyms
04a type of curve
C2 · Proficiency Countable noun Mathematics Academic · Technical
n. a line on a graph that represents a cubic equation.
n. a curve or function of the third degree.
“The graph of the cubic showed a clear curve passing through the center.”
“When plotted on a Cartesian plane, the cubic exhibits a characteristic S-shape with at most two turning points.”
Real-World Examples
“Of that total, 153,918 cubic metres were used for commercial operations at Olkaria.” “It can now cost three times that – much costlier than, for example, red oak at about US$1,500 per cubic meter ($43 per cubic foot).” Etymology
From Middle French cubique, equivalent to cube + -ic.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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QR code
englishreference.com/q/cubic
Traducciones: Kaikki.org (Wiktionary), CC BY-SA 4.0