Catagenesis
the retrogressive evolution of a species.
Compare anagenesis (def 1).
catagenesis cat·a·gen·e·sis (kāt’ə-jěn’ĭ-sĭs)
n.
See involution.
Read Also:
- Catalog
a list or record, as of items for sale or courses at a university, systematically arranged and often including descriptive material: a stamp catalog. something that contains such a list or record, as a book, leaflet, or file. a list of the contents of a library or a group of libraries, arranged according to any […]
- Catamnesis
a medical history following the onset of an illness. catamnesis cat·am·ne·sis (kāt’ām-nē’sĭs) n. The medical history of a patient following an illness; the follow-up history. cat’am·nes’tic (-něs’tĭk) adj.
- Catamount
a wild animal of the cat family, especially the cougar or the lynx. catamountain. Historical Examples It was not until he had gone deeply into the woods, and the darkness was everywhere about him, that he remembered the catamount. The Homesteader Oscar Micheaux It was as large a catamount as the two Maine lads had […]
- Cat-and-dog
continuously or unceasingly vicious and destructive: cat-and-dog competition. Slang. (of a security) highly speculative and of questionable value. Historical Examples Never such a cat-and-dog life as they’ve been leading ever since! Tess of the d’Urbervilles Thomas Hardy But ever since the znaharka’s blessing had been accorded to this particular union the pair had led a […]
- Cat-and-mouse
Also called cat and rat. a children’s game in which players in a circle keep a player from moving into or out of the circle and permit a second player to move into or out of the circle to escape the pursuing first player. Western U.S. tick-tack-toe (def 1). play cat and mouse, to engage […]