fine structure constant

Noun

Meaning

fine structure constant

Alternative form of fine-structure constant

fine-structure constant (uncountable)

(electrodynamics) The fundamental physical value α, presumed to be constant, that characterizes the strength of the electromagnetic force. Equal to about 1/137 = 0.0072973525.
Synonyms: Sommerfeld's constant, electromagnetic coupling constant

Alternative names

fine-structure constant

Close letter words and terms