The Collaborative International Dictionary of English v.0.48:

Parotid \Pa*rot"id\, a. [L. parotis, -idis, Gr. ?, ?; para`
   beside, near + ?, ?, the ear: cf. F. parotide. ] (Anat.)
   (a) Situated near the ear; -- applied especially to the
       salivary gland near the ear.
   (b) Of, pertaining to, or in the region of, the parotid
       gland.
       [1913 Webster]

   Parotid gland (Anat.), one of the salivary glands situated
      just in front of or below the ear. It is the largest of
      the salivary glands in man, and its duct opens into the
      interior of the mouth opposite the second molar of the
      upper jaw.
      [1913 Webster]

WordNet (r) 3.0 (2006):

parotid gland
    n 1: a large salivary gland that produces 50% of daytime saliva;
         in human beings it is located in front of and below each
         ear