VOCABULARY
| Root |
Derived Word |
Meaning |
| Ophthalmos (eye) |
Ophthalmologist |
The physician whose speciality is disorders of vision |
| Opsis (sight) |
Optometrist |
One who measures vision |
|
Optician |
One who fills an ophthalmologist’s or optometrists’ prescription |
|
Optical |
Dealing with the eye or vision |
| Orthos (straight) |
Orthopaedist |
One who treats skeletal deformities |
|
Orthodontist |
Specialist who straightens teeth |
| Kardia (heart) |
Cardiologist |
Specialist who treats disorders of the heart and circulatory system |
|
Cardiac |
Pertaining to the heart |
|
Cardiogram |
Electrically produced record of the heart beat |
|
Cardiograph |
The instrument which produces a cardiogram |
| Neuron (nerve) |
Neurologist |
One who treats disorders of the brain, spinal cord and nervous system |
|
Neuralgia |
Acute pain along the nerves and their branches |
|
Neuritis |
Inflammation of the nerves |
|
Neurosis |
Emotional or personality disorder |
|
Neurotic |
A person suffering from neurosis |
| Geras (old age) |
Geriatrics |
Speciality dealing with medical needs of the elderly |