| APO | of questionable authenticity |
|---|---|
| APO | chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers |
| APO | of or relating to tropical plants of the family Apocynaceae |
| APO | perennial herbs with small pink or white flowers |
| APO | North American perennial having pinkish flowers in loose cymes |
| APO | Canadian dogbane yielding a tough fiber used as cordage by native Americans |
| APO | North American plant similar to common dogbane |
| APO | (of snakes and eels) naturally footless |
| APO | (logic) of a proposition |
| APO | ridge-like ingrowth of the exoskeleton of an arthropod that supports internal organs and provides attachment points for muscles |
| APO | Old World field mice |
| APO | nocturnal yellowish-brown mouse inhabiting woods and fields and gardens |