Phrase guide

Wallace effect

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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Pronunciation

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1

noun

Meaning 1

A process of speciation where natural selection increases the reproductive isolation between two populations of species as a result of selection acting against the production of hybrid individuals of low fitness.

Definition source: English Wiktionary via Wiktextract

Qualifier: evolutionary biology

Topics: biology, ecology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Named after Alfred Russel Wallace.