5
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
O/E

on examination

OA

osteoarthritis

obesity

Excess accumulation of fat in the body.

obstetric cholestasis

An uncommon complication of pregnancy that causes a build-up of bile acids in the bloodstream.

occiput

The back of the head.

occlusion

The blockage of a passage, canal, vessel or opening in the body.

occupational therapist

A health professional who helps to improve a person's level of independence and their management of the activities of daily living.

occupational therapy

Therapy aimed at improving a person's level of independence and their management of the activities of daily living.

oculomotor nerve

The nerve controlling most of the muscles that move the eye.

OE

otitis externa

oedema

The accumulation of excess fluid in the tissues of the body.

oesophageal spasm

Uncoordinated muscle contractions in the oesophagus, which cause intermittent swallowing difficulties and chest or upper abdominal pain.

oesophagectomy

The surgical removal of all or part of the oesophagus, or gullet.

oesophagitis

Inflammation of the lining of the oesophagus

oesophago-gastro duodenoscopy

A diagnostic procedure where an endoscope is used to visualise the upper part of the gastrointestinal tract up to the duodenum.

oesophagus

The gullet, the part of the gastrointestinal system that extends down from the mouth cavity to the stomach.

oestradiol

The main female hormone.

oestrogen

A hormone involved in female sexual development, produced by the ovaries.

OG

onychogryphosis

OGD

oesophago-gastro duodenoscopy

olfactory

Relating to the sense of smell.

oligoarthritis

A type of arthritis defined by inflammation of two to four joints.

oligoclonal bands

bands of immunoglobulins seen when blood serum is analysed.

oligomer

A molecule made up of several repeating units, called 'monomers'.