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a person's ability to learn or understand something
Idiom
InformalWhat is the origin of the idiom "gray matter" and when to use it?
The idiom "gray matter" originated from the color of the human brain, which is often described as grayish in appearance. It has been in use since the 19th century, and the term "gray matter" has long been associated with intelligence, intellect, and the cognitive abilities of the brain. It is often used in a positive or neutral context to describe someone's intelligence or ability to think critically.
the region of the central nervous system that contains neural cell bodies, dendrites, and synapses, and appears greyish in color
What is "gray matter"?
Gray matter refers to the tissue in the central nervous system that predominantly contains cell bodies of neurons. It forms the outer layer of the cerebral cortex and clusters within the deeper regions of the brain and spinal cord. Gray matter plays a crucial role in processing and integrating sensory information, motor control, memory, and cognition. Its distinctive gray appearance is due to the presence of neuronal cell bodies and their associated structures, highlighting its importance in neural communication and information processing within the body.
grey matter
