ممر. مسلك. طريق                                                                                ode-,

أسنان                                                                                       odonto-,

المرئ. مريئي                                                                           oesophago-,

زيت. زيتي                                                                                  ole-, (oil)

نادر. قليل. قلة. ضئيل                                                                         oligo-,

وريقة                                                                                          omaso-,

السرة. سري. المركز. الوسط                                                               omphal-,

لها حرم. ذو حجم. كثير                                                                         onc-,

ظفر. ظفري. حافر                                                                        onycho-,

بيضة. بويضة                                                                 oo-, ov-, (ovum)

مبيض. مبيض                                                                oophor-, ootheca

يري. يشاهد                                                                                        op-,

ثعبان                                                                              ophi-, ophio-,

عين. رمد                                                                               opthalmo-,

خلف. ظهر. وراء. مؤخرة                                                                     opisth-,

رمد. نظر. رؤية. بصر                                                    opt-, optic-, opto-,

فم. بوق                                                                                             or-,

دائرة                                                                                               orb-,

خصية. خصوي                                                                              orchid-,

خصية. خصوي                                                                           orchido-,

عضو. عضوي. اداة. ينفذ                                                                    organ-,

فم. فموي                                                                                         oro-,

صحيح. سوى. مستقيم                                                                       ortho-,

عظم. فم                                                                                            os-,

الخصية. الصفن. صفني                                                        osche-, oscheo-,

رائحة. نضح. تناضح                                                                            osm-,

عظم. عظمى                                                                 oss-, ost-, osteo-,

أذن                                                                                        oto-, ot-,

بيضة. بويضة                                                                                       ov-,

مبيض. مبيضي                                                                    ovari-, (ovary)

زيادة. فوق. إفراط                                                                                  over

بيضة. بيضاوي                                                                     ovo-, ovulo-,

أكسو. أكسجين                                                              ox-, oxo-, oxy-,

حاد. دقيق. حدة                                                                                 oxy-,

سميك. تخين. غليظ. كثيف                                                                  pachy-,

قدم                                                                    paed-, paedo- =ped-,

حنكي. حنك                                                                                 palato-,

شامل. كامل. كل                                                                    pan-, pant-,

بنكرياس                                                               pancreat-, pancreato-,

يحمل. يلد                                                                                         par-,

جار. مجاور. بجوار. إحاطة                                                                       para-,

حليمة. حليمي                                                                              papillo-,

جدار. جداري                                                                               parieto-,