Meanings
proper noun
- The hypothesis that evolution is not reversible.
Origin
Proposed in 1893 by French-born Belgian paleontologist Louis Dollo.
Full word history & related roots →Cite this entry
APA
Dollo's law. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Dollo's%20law
MLA
“Dollo's law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Dollo's%20law. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Dollo's law,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Dollo's%20law.
Source: Dollo's law on Wiktionary, CC BY-SA 4.0.