HAART
Acronym for highly active antiretroviral therapy. |  | habituation
The process of forming a habit, referring generally to psychological dependence on the continued use of a drug to maintain a sense of well-being, which can result in drug addiction.
The method by which the nervous system reduces or inhibits responsiveness during repeated stimulation. | | half-life
The period in which the radioactivity or number of atoms of a radioactive substance decreases by half; similarly applied to any substance, such as a drug in serum, whose quantity decreases exponentially with time. Cf.: half-time | | halitosis
A foul odor from the mouth.
Syn: fetor oris, ozostomia, stomatodysodia
[L. halitus, breath, + G. -osis, condition] | | hallucination
The apparent, often strong subjective perception of an external object or event when no such stimulus or situation is present; may be visual, auditory, olfactory, gustatory, or tactile.
[L. alucinor, to wander in mind] | | hard palate
the anterior part of the palate, consisting of the bony palate covered above by the mucous membrane of the floor of the nasal cavity and below by the mucoperiosteum of the roof of the mouth, which contains the palatine vessels, nerves, and mucous glands; Syn: palatum durum
in cephalometrics, a line connecting the anterior and posterior nasal spines to represent the position of the bony palate. | | HAV
Abbreviation for hepatitis A virus | | hay fever
a form of atopy characterized by an acute irritative inflammation of the mucous membranes of the eyes and upper respiratory passages accompanied by itching and profuse watery secretion, usually without temperature elevation, followed occasionally by bronchitis and asthma; the episode recurs annually at the same or nearly the same time of the year, in spring, summer, or late summer and autumn, caused by an allergic reaction to the pollen of trees, grasses, weeds, flowers, etc.
Syn: allergic coryza | | HBIG
Abbreviation for hepatitis B immune globulin | | HBV
Abbreviation for hepatitis B virus. | | HCV
Abbreviation for hepatitis C virus. | | HDV
Abbreviation for hepatitis delta virus. | | headache
Pain in various parts of the head, not confined to the area of distribution of any nerve. See also: cephalodynia
Syn: cephalalgia, encephalalgia, encephalodynia | | health
The state of the organism when it functions optimally without evidence of disease or abnormality.
A state of dynamic balance in which an individual's or a group's capacity to cope with all the circumstances of living is at an optimal level.
A state characterized by anatomic, physiologic, and psychological integrity, ability to perform personally valued family, work, and community roles; ability to deal with physical, biologic, psychological, and social stress; a feeling of well-being, and freedom from the risk of disease and untimely death. | | health psychology
the aggregate of the specific educational, scientific, and professional contributions of the discipline of psychology to the promotion and maintenance of health, the prevention and treatment of illness, the identification of etiologic and diagnostic correlates of health, illness, and related dysfunction, and the analysis and improvement of the health care system. | |
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