Meaning: Without, no

Example: Aphasia – a condition characterized by the complete loss of ability to speak or understand language.

Meaning: Without, not

Example: Anencephaly – a condition where a major portion of the brain, skull, and scalp is absent.

Meaning: Difficult, painful, abnormal

Example: Dysphasia – difficulty speaking.

Meaning: Half 

Example: Hemiparesis – weakness on one side of the body.

• Meaning: Excessive, above normal
• Example: Hyperreflexia – exaggerated reflexes.

• Meaning: Not, inward
• Example: Insomnia – inability to sleep.

• Meaning: Between
• Example: Interneuron – a neuron that transmits signals between other neurons.

• Meaning: Within, inside
• Example: Intracranial – located or occurring within the skull.

• Meaning: All, entire
• Example: Panhypopituitarism – decreased function of all pituitary hormones, affecting the nervous system.

• Meaning: Beside, abnormal
• Example: Paraplegia – paralysis of the lower half of the body.

• Meaning: Many
• Example: Polyneuropathy – damage or disease affecting multiple nerves.

• Meaning: After
• Example: Postictal – the state following a seizure.

• Meaning: Before
• Example: Presynaptic – relating to the area before a synapse.

• Meaning: Under, below
• Example: Subdural – located beneath the dura mater, a membrane surrounding the brain and spinal cord.

• Meaning: Slow
• Example: Bradycardia – a slow heart rate (below 60 beats per minute).

• Meaning: Inside, within
• Example: Endocarditis – inflammation of the inner lining of the heart.

• Meaning: Upon, over, on top
• Example: Epicardium – the outer layer of the heart.

• Meaning: Excessive, above normal
• Example: Hyperlipidemia – elevated levels of lipids in the blood.

• Meaning: under or below
• Example: orthostatic hypotension – low blood pressure that occurs upon standing up.

• Meaning: Around
• Example: Pericardium – the membranous sac that contains the heart

• Meaning: Fast
• Example: Tachycardia – a fast heart rate (over 100 beats per minute).