opening diameter
[ˈoʊpənɪŋ daɪˈæmɪtər]
nounpl: opening diameters
diâmetro da abertura
1. The width of a circular or oval opening measured across its widest point, passing through the center
The opening diameter of the pipe is 50 millimeters.
O diâmetro da abertura do tubo é de 50 milímetros.
2. In photography and optics, the effective diameter of a lens opening or aperture
A larger opening diameter allows more light to enter the camera.
Um diâmetro de abertura maior permite que mais luz entre na câmera.
3. In engineering and construction, the measurement of openings in walls, doors, or structural elements
The door frame requires an opening diameter of 90 centimeters.
O marco da porta requer um diâmetro de abertura de 90 centímetros.
This is a purely technical term used in engineering, construction, manufacturing, and optics across both Brazilian and American contexts. It has no colloquial usage and is standardized in technical documentation and specifications. The term is universal across Portuguese-speaking countries and English-speaking regions.
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