| HOA | Hypertrophic Osteoarthropathy |
|---|---|
| HOA | hip osteoarthritis; hypertrophic osteoarthropathy |
| HPO | high-presure oxygen; hydroperoxide; hydrophilic ointment; hypertrophic pulmonary osteoarthropathy |
| HPOA | hypertrophic pulmonary osteoarthropathy |
| OAP | Office of Adolescent Pregnancy; old age pension, old age pensioner; ophthalmic artery pressure; oste... |