| APO | (astronomy) the point in an orbit farthest from the body being orbited |
|---|---|
| APO | the revelations of Saint John the Divine in the New Testament |
| APO | a cosmic cataclysm in which God destroys the ruling powers of evil |
| APO | prophetic of devastation or ultimate doom |
| APO | of or relating to an apocalypse |
| APO | prophetic of devastation or ultimate doom |
| APO | (of ovaries of flowering plants) consisting of carpels that are free from one another as in buttercups or roses |
| APO | (optics) corrected for both chromatic and spherical aberration |
| APO | abbreviation of a word by omitting the final sound or sounds |
| APO | (of exocrine glands) producing a secretion in which part of the secreting cell is released with the secretion |
| APO | a large sweat gland that produces both a fluid and an apocrine secretion |
| APO | 14 books of the Old Testament included in the Vulgate but omitted in Jewish and Protestant versions of the Bible |