lamarckian

adjective

1. of or relating to Jean de Lamarck or his theory of organic evolution.

noun

2. a person who holds this theory.

adjective

1. of or relating to Lamarck

noun

2. a supporter of Lamarckism

adj.1846, pertaining to French botanist and zoologist J.B.P. Lamarck (1744-1829), especially his view that the process of evolution includes the inheritance of acquired characteristics.