Haeckelian
1 of 2adjective
Haeck·e·li·an
(ˈ)he¦kēlēən
: relating to Haeckel or his theories compare recapitulation theory
Haeckelian
2 of 2noun
"
plural -s
: a believer in Haeckel's theories
Word History
Etymology
Adjective
Ernst H. Haeckel †1919, German biologist + English -ian