Medical Glossary

Hemiplegia

Paralysis or severe weakness (paresis) of one side of the body, usually due to injury or disease of the brain or spinal cord.

Hemivertebrae

A congenital absence of half of a vertebra.

Horner Syndrome

A condition with contraction of the pupil, partial drooping of the eyelid, recession of eyeball back into socket, and sometimes loss of sweating over the affected side of the face, due to paralysis of...

Hydro

Water, or collection of watery fluid.

Hydrocephalus

An increased accumulation of CSF within the ventricles of the brain, resulting from interference with normal circulation and with absorption of the fluid, especially from destruction of the formation...

Hydromyelia

Accumulation of fluid in the enlarged central canal of the spinal cord.

Hyper

Prefix meaning above, excessive, or beyond.

Hyperreflexia

Increase in action of the reflexes.

Hypo

Prefix meaning less than, below, or under.

Hypoplasia

Defective development of tissue.

Hyporeflexia

Decrease in the action of the reflexes.

Hypotonia

Reduced tension, relaxation of arteries. Loss of muscle tone.
Please note that whilst we aim to respond promptly, we are not an emergency service. If you have a life threatening emergency, we advise you to dial 999 and ask for an ambulance.