- to test (iron or steel) for defects using the Magnaflux method.
Origin of magnaflux
First recorded in 1935–40; see origin at Magnaflux
- a test of ferrous metals involving the dusting of a magnetized sample with magnetic powder, or the application of oil containing magnetic particles in suspension, to detect surface cracks and defects.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018