fifth force

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|physics}} A [[hypothetical]] [[fundamental force]], distinct from [[gravity]], [[electromagnetism]], and the [[strong force]] and [[weak force]], proposed to explain various anomalous observations that do not fit existing theories.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.