OC

• obstetrical conjugate;

• occlusocervical;

• oesophageal candidiasis;

• office call;

• on call;

• only child;

• optical colonoscopy;

• optic chiasma;

• oral contraceptive;

• orbicularis oculi [muscle];

• order communication [system];

• original claim;

• organ culture;

• organochlorine;

• orofacial cleft;

• outer canthal [distance];

• ovarian cancer;

• oxygen consumed