Category: H

  • Hypnodontics

    The application of controlled suggestion and hypnosis to the practice of dentistry.  

  • Hypnagogic state

    A transitional state between sleeping and waking and the delusions that may result therefrom.  

  • Hyphomycetes

    In one system of taxonomy, a class of the fungi imperfecti; it includes the genera Aspergillus, Blastomyces, and Histoplasma. This class is equivalent to the phylum Deuteromycotina in another system of taxonomy.  

  • Hyperviscosity

    Excessive resistance to the flow of liquids. Impaired hydraulic behavior, especially of the plasma. Hyperviscous plasma is found in several hematological illnesses, including multiple myeloma and Waldenstrom’s macroglobulinemia. In the latter illness, it can be treated with plasma exchange therapy. The condition of having thick and sticky blood is attributed to the buildup of substantial…

  • Hypervigilance

    Excessive attentiveness to stimuli. Hypervigilance refers to an altered state of exceptionally heightened vigilance and alertness observed in individuals who have endured trauma or prolonged abuse. It is often depicted as a perpetual sense of being on high alert, maintaining a constant state of red alert. This condition manifests as an abnormal and intensified state…

  • Hypervalinemia

    An inherited condition caused by a deficiency of the enzymes essential to the metabolism of valine. The condition is marked by mental retardation, nystagmus, vomiting, and failure to thrive.  

  • Hypertonus

    Increased tension, as muscular tension in spasm.  

  • Hypertonicity

    An excess of muscular or arterial tone or intraocular pressure.  

  • Hyperthyroxinemia

    An excess of thyroxine in the blood.  

  • Hyperthrombinemia

    An excess of thrombin in the blood. This tends to promote intravascular clotting.