lamarckism

Fetched 2026-10-26 (cache).

Synonyms: lamarckian

Antonyms: lamarckian

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|evolutionary theory|historical}} The [[theory]] that [[structural]] variations, characteristic of [[species]] and [[genus|genera]], are produced in animals and plants by the direct influence of [[physical]] environments, and especially, in the case of animals, by effort, or by use or [[disuse]] of certain [[organ]]s.

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