| a prefix meaning “down,” “against,” “back,” occurring originally in loanwords from Greek (cataclysm; catalog; catalepsy); on this model, used in the formation of other compound words (catagenesis; cataphyll). |
| cata- pref.
[Greek kata-, from kata, down, downwards, thoroughly; see kat- in Indo-European roots.] |
cata- pref.
Down: catabolism.
Reverse; backward; degenerative: cataplasia.