zona-reticularishttp://www.oed.com/dictionary/zona-reticularis_n%3Ftab%3Dmeaning_and_usezona reticularis, n.
First published 1921; not fully revised

zona reticularisnoun

  1. 1874–
    The middle, outer, and inner layers respectively of the cortex of the adrenal gland.
    1. 1874
      Zona reticularis... This term has been applied..to the inner layer, as Zona glomerulosa has been to the outer layer, of the stroma of the cortical part of the suprarenal capsule. The main portion he [sc. J. Arnold] calls Zona fasciculata.
      Dunglison's Med. Lexicon (revised edition)
    2. 1883
      The inner zona, or zona reticularis, composed of smaller or larger groups of polyhedral cells.
      E. Klein, Elements of Histology 341
    3. 1883
      Next follows the inner zone, or zona reticularis.
      E. Klein, Elements of Histology 341
    4. 1965
      The cells in the innermost layer are in the form of a reticulum—the zona reticularis.
      J. Lee & F. Knowles, Animal Hormones iv. 70

Originally published as part of the entry for zona, n.

zona, n. was first published in 1921; not fully revised.