Meanings
noun
- The speed of light viewed as an uncrossable barrier to acceleration from subluminal and superluminal speeds in special relativity.
Tachyons exist on the other side of the Einstein barrier.
Synonyms: light barrier
Synonyms & antonyms
nounThe speed of light viewed as an uncrossable barrier to acceleration from subluminal and superluminal speeds in special relativity.
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Also see
Origin
Named after Albert Einstein.
Full word history & related roots →Cite this entry
APA
Einstein barrier. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Einstein%20barrier
MLA
“Einstein barrier.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Einstein%20barrier. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Einstein barrier,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Einstein%20barrier.
Source: Einstein barrier on Wiktionary, CC BY-SA 4.0.