noun🔗ShareThe outer layer of an internal organ or body structure, such as the kidney or the brain."Thinking hard about the math problem activated the neurons in Maria's brain's cortex. "organanatomyphysiologybiologymedicinebodyscienceChat with AIVocabulary GamePractice Reading
noun🔗ShareThe tissue of a stem or root that lies inward from the epidermis, but exterior to the vascular tissue."The science student carefully dissected the plant stem to observe the cortex, the layer of tissue between the outer skin and the central core. "biologyplantanatomyChat with AIVocabulary GamePractice Reading