retrogressive evolution
1retrogressive — ret·ro·gres·sive gres iv adj characterized by retrogression: as a) declining from a better to a worse state <a retrogressive disease> b) passing from a higher to a lower level of organization <retrogressive evolution> …
2retrogressive — adjective Date: 1802 characterized by retrogression: as a. going or directed backward b. declining from a better to a worse state c. passing from a higher to a lower level of organization < retrogressive evolution > • retrogressively adverb …
3retrogressive development — Developmental trend in evolution resulting in simplification of an organism, usually through the complete or partial loss of one or more structures; regressive development …
4Catagenesis (geology) — See Catagenesis (biology) for usage in the field of biology, where it refers to retrogressive evolution. Contrast with anagenesis. Catagenesis is a term used in petroleum geology to describe the cracking process which results in the conversion of …
5Catagenesis — can refer to:* Catagenesis (geology) – The cracking process in which organic kerogens are broken down into hydrocarbons; * Catagenesis (biology) – Retrogressive evolution, as contrasted with anagenesis …
6katagenesis — n. [Gr. kata, down; genesis, beginning] Retrogressive evolution …
7catagenesis — catagenetic /kat euh jeuh net ik/, adj. /kat euh jen euh sis/, n. Biol. the retrogressive evolution of a species. Cf. anagenesis (def. 1). [1880 85; CATA + GENESIS] * * * …
8History of Western typography — Contemporary typographers view typography as craft with a very long history tracing its origins back to the first punches and dies used to make seals and currency in ancient times. The basic elements of typography are at least as old as… …
9Jean Laplanche — (né en 1924), philosophe de formation, est un psychanalyste « de la troisième génération ». L importance de son œuvre se mesure à l aune de l avancée scientifique que propose la psychanalyse en France après Freud : les travaux de… …
10Доказательства эволюции — Ископаемый археоптерикс, обнаруженный вскоре после публикации « …
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