| CI | a daily cycle of activity observed in many living organisms |
|---|---|
| CI | enchanter's nightshade |
| CI | an Alpine variety of enchanter's nightshade |
| CI | tall evening primrose with inconspicuous flowers |
| CI | Harrier eagles |
| CI | a northern Caucasian language spoken by the Circassian people |
| CI | a member of a Caucasian people living in the Caucasus but not speaking an Indo-European language |
| CI | Eurasian walnut valued for its large edible nut and its hard richly figured wood |
| CI | (Greek mythology) a sorceress who detained Odysseus on her island and turned his men into swine |
| CI | shaped like a ring |
| CI | a small faint constellation in the southern hemisphere near Musca and Triangulum Australe |
| CI | small tree of the eastern Mediterranean having abundant purplish-red flowers growing on old wood directly from stems and appearing before the leaves: widely cultivated in mild regions |