ALVEOLI, in Anatomy, little Sockets in the Jaws, wherein the Teeth are set. See TEETH, and JAW. The Alveoli are lined with a Membrane of exquisite Sense, which seems to be nervous, and is wrapped about the Roots of each Tooth; from whence, and the Nerve, proceeds that Pain called Odontalgia, or Tooth-ache. See ODONTALGIA, and TOOTH-ACHE.