| APO | of or relating to an apophysis |
|---|---|
| APO | (anatomy) a natural outgrowth or projection on an organ or part such as the process of a vertebra |
| APO | (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain mosses or on the cone scale of certain conifers |
| APO | pertaining to or characteristic of apoplexy |
| APO | resembling apoplexy |
| APO | resembling apoplexy |
| APO | a sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain |
| APO | a type of cell death in which the cell uses specialized cellular machinery to kill itself |
| APO | small genus of epiphytic cacti of Mexico |
| APO | commonly cultivated tropical American cactus having slender creeping stems and very large showy crimson flowers that bloom for several days |
| APO | apoapsis in orbit around the moon |
| APO | conspicuous coloration or markings of an animal serving to warn off predators |