下身联胎，双上身联胎：指上身分开向下则趋于联合的畸胎- ovariocele
- ovariocentesis
- ovariocyesis
- ovariodysneuria
- ovariogenic
- ovariohysterectomy
- ovariopathy
- ovariopexy
- ovariorrhexis
- ovariosalpingectomy
- ovariostomy
- ovariotestis
- ovariotomy
- ovariotubal
- ovaritis
- ovarium
- ovary
- OVD
- overbite
- overclosure
- overcompensation
- overcorrection
- overdenture
- overdetermination
- overdosage