词根词缀:exo-, ex-
【来源及含义】Greek: outer, outside, external; used as a prefix
【同源单词】exobiology, exobiotic, exocardia, exocardiac, exocardial, exocarp
词根词缀:-ic
【来源及含义】Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous
【同源单词】abdominocystic, abdominopelvic, abdominoscopy, abdominothoracic, abiogenetic, abiogenic