cu in
- noun
- Specialized
- The box measured 12 cu in.
Examples
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This container holds only 10 cu in of water, which is a very small amount.
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Please convert the measurements from cu in to liters for international customers.
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The engine had a displacement of 350 cu in, making it very powerful for its time.
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This container holds 100 cu in of liquid.
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The storage box has a capacity of 1,500 cu in.
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This cooler can hold up to 35 cu in of ice.
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The dimensions of the container provide a volume of 12 cu in.
Synonyms
A measure of space equal to a cube with sides one inch long
How Big
Surface Forms
Morphology
cu + in
This is an orthographic abbreviation (cu in = cubic inch) rather than a compositional phrase: the element 'cu' is not a lexical English word and 'in' in the provided sense is a preposition, so a B1 learner who only knows the listed constituents would not be able to derive the unit-of-volume meaning. Only learners familiar with the conventional abbreviation conventions (cu. = cubic, in = inch) could interpret it, making it non-compositional for most learners.
Etymology
Cu in is the short form of the term 'cubic inch'. Imagine a tiny cube with sides one inch long; that cube shows the amount of space the name measures. So cu means 'cubic' and in means 'inch', and cu in is used to show 'volume'.