etio-

etio-

(ē'tē-ō),
1. Prefix used with, for example, cholane to indicate replacement of the C-17 side chain by H; thus, etiocholane is the 5β isomer of androstane.
2. Combining form meaning cause.

etio-

prefix meaning "causation": etiology.

aetio-

The Greek root for “cause”, as in aetiology.

etio-

[Gr. aitia, cause]
Prefix meaning causation. The variant aetio- is used outside the U.S.