D defs.my
Entry 1 sense Webster, 1913

Harderian

/(här*dē"rĭ*an)/ · Har·de·ri·an · IPA
01 a. A term applied to a lachrymal gland on the inner side of the orbit of many animals which have a third eyelid, or nictitating membrane. See …
  1. 1.
    A term applied to a lachrymal gland on the inner side of the orbit of many animals which have a third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.(Anat.) See: Nictitate