Glossary

Author: Glossary

  • Arctium lappa

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

  • Arctation

    Stricture of any canal opening.  

  • Arch width

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

  • Archive

    A database; a bank of stored information.  

  • Architis

    Inflammation of the anus; proctitis.  

  • Archicerebellum

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

  • Archaebacteria

    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…

  • Transverse arch

    The transverse arch of the foot formed by the navicular, cuboid, cuneiform, and metatarsal bones.  

  • Supraorbital arch

    A bony arch formed by the upper margin of the orbit.  

  • Superior tarsal arch

    The arch of the median palpebral artery that supplies the upper eyelid.