| oscillating jump |
振擺水躍 |
| Osmotic adaptation |
滲透適應 |
| Osmotic pressure |
滲透壓 |
| Osteospermum |
藍眼菊 |
| Ostichthys japonicus (Cuvier & Valenciennes) |
金鱗魚 |
| Ostrea plicatula |
褶牡蠣 |
| other eels：hagfishes (Myxinidae) ; snake eels (congridae) / conger eels (ophichthidae) |
其它海水鰻、盲鰻、蛇鰻、糯鰻、臭腥鰻、沙鰻、海鰻等 |
| Outboard propulsion system |
船外推進莊置 |
| outflow hydrograph |
出流歷線 |
| Output value |
產值 |
| outside working circle (O/W) protection forest |
區外保安林 |
| Outstanding Agricultural Professionals Award |
優秀農業人員獎 |
| Ovarian development |
卵發育 |
| Ovaries petrifaction |
卵巢石化 |
| Over-wintering pond |
越冬池 |
| Oversea based fishery ship |
遠洋漁船 |
| overwood; upper crop |
上層木 |
| Ovine Epididymitis |
綿羊副睾炎 |
| Ovine Pulmonary Adenomatosis |
綿羊肺腺瘤病 |
| Oviparity |
卵生 |
