cortical
Cortical (adj) means relating to the outer layer (cortex) of an organ, especially the brain. Example: “The scan showed unusual cortical activity during the memory task.”
How to use cortical
Learner’s notesIn plain EnglishThe adjective form of "cortex" — describing anything to do with that outer layer.
Fill the gap
Can you complete this real example?
The scan showed unusual _____ activity during the memory task.
Etymology
From Latin cortex ("bark"), plus the adjective ending -al.