. "The Zeeman effect (/\u02C8ze\u026Am\u0259n/; Dutch pronunciation: [\u02C8ze\u02D0m\u0251n]), named after the Dutch physicist Pieter Zeeman, is the effect of splitting a spectral line into several components in the presence of a static magnetic field. It is analogous to the Stark effect, the splitting of a spectral line into several components in the presence of an electric field."@en . .