ORTHOGENESIS


Meaning of ORTHOGENESIS in English

[ ˌɔ:θə(ʊ)'dʒɛnɪsɪs ]

■ noun Biology, chiefly historical evolution in which variations follow a particular direction and are not merely sporadic and fortuitous.

Derivatives

orthogenetic adjective

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.