1. Process of the temporal bone behind the ear at the base of the skull
   "The mastoid process serves as an attachment point for neck muscles"; "The otologist examined the patient's mastoid bone for signs of infection";
   - mastoid process, mastoid bone, mastoidal

1. Relating to or resembling the mastoid process of the temporal bone
   "The surgeon carefully examined the mastoid region before the procedure";
   - mastoidal
    
2. Relating to or resembling a nipple
   "The mastoid process is a nipple-shaped prominence of the temporal bone"

Derived forms: mastoids

Type of: appendage, outgrowth, process

Part of: os temporale, temporal bone

Encyclopedia: Mastoid