Home › Words › H › haeckelismhaeckelismhaeckelism · noun — haeckelian beliefs.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom Haeckel + -ism.nounHaeckelian beliefs.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.haeckelianism 94% match — Haeckelian beliefs. vs haeckelism →haeckelian 73% match — Of or relating to the German zoologist Ernst Haeckel. vs haeckelism →butlerian 60% match — Of or relating to Samuel Butler (1835–1902), iconoclastic Victorian author. vs haeckelism →recapitulationism 59% match — The doctrine that during embryonic development various structures develop that appeared during the evolutionary history of the species. vs haeckelism →darwinianism 58% match — Darwinism vs haeckelism →orthoevolution 55% match — orthogenesis vs haeckelism →hutchinsonianism 55% match — Hutchinsonian beliefs generally. vs haeckelism →huttonianism 55% match — The Huttonian theory of geology. vs haeckelism →