HomeServicesBlogDictionariesContactSpanish Course
← Back to search

Meaning of fine-structure constant | Babel Free

Noun CEFR B2

Definitions

The fundamental physical value α, presumed to be constant, that characterizes the strength of the electromagnetic force. Equal to about 1/137 = 0.0072973525.

uncountable

Equivalents

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Learn this word in context

See fine-structure constant used in real conversations inside our free language course.

Start Free Course