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Meaning of rack unit | Babel Free

Noun CEFR B2

Definitions

A unit of measure defined as 1 3⁄4 inches (44.45 mm), most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

rack-and-pinion railway rack-renter Racka rackabones rackan rackarock

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