When measuring a threaded rod, the machinist carefully checked the minor diameter to ensure the part would fit the mating component.

The engineer measured the internal diameters of each pipe before assembly.

Before final inspection, the quality control technician recorded the major diameters of each bolt to ensure compliance.

The machinist measured the inside diameters of the cylinders before assembly.

She cut the watermelon diameterwise to make two equal halves for the picnic.