Category: A

Opaque ring about the periphery of the cornea similar to arcus senilis but occurring in young individuals; may be due to hypercholesterolemia, corneal irritation or inflammation, or a congenital anomaly.  

The arch formed by the alveolar process of the maxilla.  

The arch formed by the alveolar process of the body of the mandible.  

A member of the aster family, promoted as a natural diuretic and laxative. It is also known as  burdock, lappa, and happy major.  

Stricture of any canal opening.  

The measured distance between the canines, bicuspids, and the first molars. These distances establish the shape and size of the dental arch.  

A database; a bank of stored information.  

Inflammation of the anus; proctitis.  

The flocculonodular lobe of the cerebellum. It is tied into the vestibular system and is the phylogenetically oldest segment of the cerebellum.  

A group of single-celled organisms, classified by some microbiologists as a type of bacteria and by others as a separate kingdom or domain of life. Unlike Eubacteria, they lack peptidoglycans in their cell walls. Their ribosomal RNA base sequences also differ from those found in Eubacteria. Many live in harsh environments, such as superheated steam…