O — oa ob oc od oe of og oh oi ok ol om on oo op or os ot ou ov ow ox oy oz
oecumenical |ˌiːkjuːˈmenɪkəl| — concerned with promoting unity among churches or religions
oedema |ɪˈdiːmə| — swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities
oedemata |iːˈdiːmətə| — plural form of oedema
oedematous — (British) Alternative form of edematous.
oedipal |ˈiːdɪpl| — Alternative capitalization of Oedipal
Oedipus |ˈiːdɪpəs| — (Greek mythology) a tragic king of Thebes who unknowingly killed his father Laius and married his mother Jocasta; the subject of the drama `Oedipus Rex' by Sophocles
oenologist — a specialist in wine making
oersted |ˈərsted| — the magnetic field strength 1 cm from a unit magnetic pole
oesophagi |iːˈsɒfəɡaɪ| — plural form of oesophagus
oesophagus |ɪˈsɑːfəɡəs| — the passage between the pharynx and the stomach
oestrogen |ˈestrədʒən| — a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics
oestrum |ˈiːstrəm| — Alternative spelling of estrum.
oestrus |ˈestrəs| — applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
oeuvre |ˈɜːvrə| — the total output of a writer or artist (or a substantial part of it)