bore diameter

[bɔːr daɪˈæmɪtər]
nounpl: bore diameters
diâmetro do furo
1. The internal diameter of a cylindrical hole, especially in mechanical engineering, manufacturing, or firearms
The bore diameter of the engine cylinder is 85 millimeters.
O diâmetro do furo do cilindro do motor é 85 milímetros.
2. The interior width measurement of a gun barrel
A .45 caliber pistol has a bore diameter of approximately 11.43 millimeters.
Uma pistola calibre .45 tem um diâmetro do furo de aproximadamente 11,43 milímetros.
3. The internal measurement of a pipe or tube
The bore diameter of the hydraulic cylinder must be precisely machined.
O diâmetro do furo do cilindro hidráulico deve ser precisamente usinado.
This is a technical term primarily used in engineering, manufacturing, and firearms industries. In Brazil, it's essential in automotive and industrial contexts, while in the USA it's particularly common in mechanical engineering and firearms specifications. The term maintains the same meaning across English-speaking countries and Portuguese-speaking regions.
Synonyms / Sinônimos
internal diameterhole diametercylinder boreinside diameter (ID)
Antonyms / Antônimos
outer diameterexternal diameter

Regional Variations

General Brazilian Portuguese
diâmetro do furo
Standard technical term used in engineering and manufacturing
Brazil - Technical
diâmetro interno
Alternative technical term commonly used in industrial contexts
Portugal
diâmetro do furo
Same as Brazilian Portuguese; standard in European Portuguese technical documentation
Brazil - Firearms
calibre
Often refers to bore diameter in firearms context, though less precise technically

Related Words

borediametercaliberstrokecylindertolerance
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