Definition

1. Adjective:

   • Relating to or resembling a nipple: Describes something that has the shape or characteristics of a nipple or teat.
   • Of or relating to the mastoid process: Pertaining to the specific bony prominence of the temporal bone located behind the ear.

2. Noun:

   • The mastoid process: The conical, nipple-like bony projection of the temporal bone situated behind the ear at the base of the skull.

Examples of Usage

• Adjective:

  • The surgeon examined the mastoid region for signs of infection.
  • The bone had an unusual, slightly mastoid shape.

• Noun:

  • Inflammation of the air cells within the mastoid can lead to a serious condition called mastoiditis.
  • The blow landed just behind the ear, directly on the mastoid.

Advanced Usage

• "Mastoid air cells": The small, air-filled cavities within the mastoid process of the temporal bone.

  • The CT scan revealed opacification of the mastoid air cells.

• "Mastoid antrum": A cavity in the petrous part of the temporal bone that communicates with the middle ear and the mastoid cells.

  • The infection spread from the middle ear into the mastoid antrum.

Variants and Related Words

• Mastoiditis (n): An infection or inflammation of the mastoid air cells.

  • Acute otitis media can sometimes develop into mastoiditis.

• Mastoidectomy (n): A surgical procedure to remove part of the mastoid bone.

  • The patient required a mastoidectomy to clear the chronic infection.

Synonyms

• Mastoidal (adj): An alternative adjective form meaning relating to the mastoid.
• Mastoid process (n): The full anatomical term for the noun form.

Related Phrases

• "To tap the mastoid": A clinical test where the mastoid bone is percussed to check for tenderness, which may indicate infection.
  • The physician decided to tap the mastoid to assess for mastoiditis.

Adjective

1. relating to or resembling a nipple
2. of or relating to or in the region of the mastoid process

Noun

1. process of the temporal bone behind the ear at the base of the skull