neurological
Word family
- neurologynounB2
- neurologistnounB2
- neurologicallyadverbC1
Synonym discussion
Sense: adjective/1
These three terms all relate to the body's nerve system but differ in scope. 'Neurological' is the broadest — it describes anything connected to the nerves, brain, and spinal cord as a whole system, and is the standard adjective for medical conditions, tests, and treatments (e.g. a neurological disorder, neurological examination). 'Neural' is narrower: it refers specifically to individual nerve cells (neurons) and their connections, and is most common in biology and computer science (e.g. neural pathway, neural network). 'Nervous' is a general everyday word that can mean 'related to the nerves' in a loose sense (e.g. nervous system, nervous tension), but is more often used for the emotion of being worried or anxious. Use 'neurological' when you need a precise, formal medical term for conditions of the whole nervous system.
Etymology
'Neurological' comes from the Greek word 'neuron' (meaning 'nerve' or 'sinew'), combined with '-logical' (meaning 'relating to the study of'). It entered English through medical Latin and French in the 17th–18th centuries, as doctors began to study the nervous system as a separate branch of medicine.