Lamarckian UK /ləˈmɑːkɪ.ən/US /ləˈmɑɹki.ən/adjective 1noun 1forms 1 adjective1 •Of or pertaining to Lamarckism. noun1 •A supporter or an advocate of Lamarckism.Even after Darwin began publishing, Spencer remained a Lamarckian, a disciple of an earlier advocate of evolution who believed organisms could pass on acquired characteristics to their offspring. — 2011 formsLamarckians
