left sacroposterior左骶后〔胎位〕- Oscinis pallipes
- oscitate
- oscitation
- osculum
- -ose
- Osgood-Haskins test
- Osgood-Schlatter disease
- -osis
- Osler's disease, nodes, sign, triad
- Osler-Vaquez disease
- Osler-Weber-Rendu disease
- Oslo meal (breakfast)
- osmate
- osmatic
- osmesis
- osmesthesia
- osmic
- osmic acid
- osmicate
- osmics
- osmidrosis
- osmification
- osmiophilic
- osmiophobic
- osmium