O字母開頭的單詞或詞組(第10頁)：
- optimization theorem
- oncer
- operating coil
- old lag
- open glands
- omental sac
- original master
- ornithine cycle
- octahydroestrone
- O-level
- odontoceramotechny
- orthophoria
- off limits
- oil-gauge pipe
- osteoectomy
- opposability
- oenilism
- old share
- output word
- overlying bond
- oxynaphthyl-ortho-oxytoluylic acid
- osteohalsiteresis
- outgoing network
- oulonitis
- overhead cable
- ovarian endometriosis
- out of round
- oxamidine
- offertory
- optimal scheduling
- optical invariant
- ordinary creditor
- on its own intiative
- oxypropylation
- overhead distillate
- ocular adaptation
- operation declaration
- occlusal step
- off-line support program
- oophorauxe