adrenal cortex - the outer part of the adrenal gland, consisting of three zones from without inward: zona glomerulosa, zona fasciculata, and zona reticularis
For the purposes of subheading 2937 22 00, the expression "adrenal cortical hormones" means natural adrenal cortical hormones, or those reproduced by synthesis, and their derivatives, provided that the latter certain hormone-activity.'