| CAI | alligator-like reptile of Central and South America having a more heavily armored belly |
|---|---|
| CAI | crocodile-like lizard of South America having powerful jaws for crushing snails and mussels |
| CAI | caiman with bony ridges about the eyes |
| CAI | tropical American timber tree with dark hard heavy wood and small plumlike purple fruit |
| CAI | evergreen tree of West Indies and Central America having edible purple fruit star-shaped in cross section and dark green leaves with golden silky undersides |
| CAI | (Old Testament) Cain and Abel were the first children of Adam and Eve born after the Fall of Man |
| CAI | introduction during embryonic development of characters or structure not present in the earlier evolutionary history of the strain or species (as addition of the placenta in mammalian evolution) |
| CAI | a genus of Anatidae |
| CAI | large crested wild duck of Central and South America |
| CAI | small rough-haired breed of terrier from Scotland |
| CAI | a mound of stones piled up as a memorial or to mark a boundary or path |
| CAI | small rough-haired breed of terrier from Scotland |