fine structure: meaning, definition, pronunciation and examples

A fundamental physical constant (denoted by α) that characterizes the strength of the electromagnetic interaction between elementary charged particles.

It is typically written as two words, though hyphenated forms (fine-structure) are common when used as a compound modifier (e.g., fine-structure splitting).

Yes, but only metaphorically in technical contexts (e.g., biology, data science) to refer to minute, detailed components within a larger system.

Fine structure arises from electron interaction with the magnetic field generated by its own orbital motion. Hyperfine structure arises from interactions between electrons and the atomic nucleus, resulting in even finer splitting.

closely spaced spectral lines forming the detailed structure of a broader spectrum.

Fine structure is usually formal; technical in register.

Fine structure: in British English it is pronounced /ˌfaɪn ˈstrʌk.tʃə(r)/, and in American English it is pronounced /ˌfaɪn ˈstrʌk.tʃɚ/. Tap the audio buttons above to hear it.