Hashimoto's Thyroiditis Glossary of Terms

The following are health and medical definitions of terms that appear in the Hashimoto's Thyroiditis article.

Autoantibody: An antibody directed against the patient's own body tissue.

Autoimmune: Pertaining to autoimmunity, a misdirected immune response that occurs when the...

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Autoimmune disease: An illness that occurs when the body tissues are attacked by its own i...

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Autoimmune process: A process in which the body's immune system attacks and destroys body ...

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Autoimmune thyroiditis: See: Hashimoto thyroiditis.

Bacteria: Single-celled microorganisms that can exist either as independent (free-living) ...

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Brain: The portion of the central nervous system that is located within the skull. It func...

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Breathing: The process of respiration, during which air is inhaled into the lungs through ...

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Cardiac: Having to do with the heart.

Cholesterol: The most common type of steroid in the body. Cholesterol has a reputation for...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Cleft palate: An opening in the roof of the mouth due to a failure of the palatal shelves ...

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Coma: A state of deep, unarousable unconsciousness. A coma may occur as a result of head t...

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Conception: 1. The union of the sperm and the ovum. Synonymous with fertilization.
...

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Congenital: A condition that is present at birth, whether or not it is inherited.

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Constipation: Infrequent and frequently incomplete bowel movements. Constipation is the op...

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Contraction: The tightening and shortening of a muscle.

Depression: An illness that involves the body, mood, and thoughts and that affects the way...

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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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Dry skin: Abnormally dry skin. Can be caused by a dry climate, winter weather, severe defi...

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Endocrine: Pertaining to hormones and the glands that make and secrete them into the blood...

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Esophagus: The tube that connects the pharynx (throat) with the stomach. The esophagus lie...

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Family history: The family structure and relationships within the family, including inform...

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Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency ...

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Genetic: Having to do with genes and genetic
information.

Gland: A group of cells that secrete a substance for use in the body. For example, the thy...

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Goiter: A noncancerous enlargement of the thyroid gland. With a goiter, the levels of thyr...

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Hair loss: Hair loss is the thinning of hair on the scalp. The medical term for hair loss ...

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Heart: The muscle that pumps blood received from veins into arteries throughout the body. ...

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Heart disease: Any disorder that affects the heart. Sometimes the term "heart disease" is ...

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Heart failure: Inability of the heart to keep up with the demands on it and, specifically...

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Heart rate: The number of heartbeats per unit of time, usually per minute. The heart rate ...

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Heredity: The genetic transmission of characteristics from parent to child.

Hormone: A chemical substance produced in the body that controls and regulates the activit...

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Hypercholesterolemia: High blood cholesterol. This can be sporadic (occurring with no fami...

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Hypothalamus: The area of the brain that secretes substances that influence pituitary and ...

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Hypothyroid: Deficiency of thyroid hormone which is normally made by the thyroid gland wh...

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Immune: Protected against infection, usually by the presence of antibodies.

Immune response: Any reaction by the immune system. For example, poison ivy can cause an i...

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Immune system: A complex system that is responsible for distinguishing a person from every...

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Infertility: Diminished or absent ability to conceive and bear offspring. A couple is cons...

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Inflammation: A localized reaction that produces redness, warmth, swelling, and pain as a ...

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Internal medicine: The medical specialty dedicated to the diagnosis and medical treatment ...

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Iodine: An element in the diet that is essential for the manufacture of hormones by the th...

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Iodine deficiency: A lack of sufficient iodine in the diet, which can lead to inadequate p...

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Kidney: One of a pair of organs located in the right and left side of the abdomen. The kid...

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Lethargy: Abnormal drowsiness, stupor.

Levothyroxine: A synthetic thyroid hormone used as a thyroid hormone replacement drug (bra...

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Lymphocytic: Referring to lymphocytes, a type of white blood cell. For example, lymphocyti...

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Menorrhagia: Excessive uterine bleeding occurring at the expected intervals of the menstru...

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Menstrual: Pertaining to menstruation (the menses), as in last menstrual period, menstrua...

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Metabolic: Relating to metabolism, the whole range of biochemical processes that occur wit...

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Metabolism: The whole range of biochemical processes that occur within a living organism. ...

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Microscopic: An object so small it cannot be seen without the aid of microscope (for examp...

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Myxedema coma: A rare and life-threatening complication of hypothyroidism (low levels of t...

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Nodule: A small collection of tissue that is palpable (can be felt) at any level of the sk...

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Onset: In medicine, the first appearance of the signs or symptoms of an illness as, for ex...

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Palate: The roof of the mouth. The front portion is bony (hard palate), and the back porti...

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Palpitations: Unpleasant sensations of irregular and/or forceful beating of the heart. In ...

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Pathologist: A physician who identifies diseases and conditions by studying abnormal cells...

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Perspiration: 1) The secretion of fluid by the sweat (sudoriferous) glands. These small, ...

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Pituitary: 1. As an adjective, pertaining to the pituitary gland or its hormonal se...

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Pituitary gland: The main endocrine gland. It is a small structure in the head. It is ca...

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Pregnancy: The state of carrying a developing embryo or fetus within the female body. Thi...

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Pregnant: The state of carrying a developing fetus within the body.

Prevalence: The proportion of individuals in a population having a disease or characterist...

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Primary care: A patient's main source for regular medical care, ideally providing continui...

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Prognosis: The forecast of the probable outcome or course of a disease; the patient's chan...

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Psychiatric: Pertaining to or within the purview of psychiatry, the medical specialty conc...

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Radiation: 1. Rays of energy. Gamma rays and X-rays are two of the types of energy ...

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Sweating: The act of secreting fluid from the skin by the sweat (sudoriferous) glands. The...

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Therapy: The treatment of disease. Therapy is synonymous with treatment.

Thyroid: 1. The thyroid gland. Also, pertaining to the thyroid gland. 2. A p...

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Thyroid gland: A gland that makes and stores hormones that help regulate the heart rate, b...

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Thyroid hormone: A chemical substance made by the thyroid gland for export into the bloods...

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Thyroid hormones: Chemical substances made by the thyroid gland, which is located in the...

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Thyroiditis: Inflammation of the thyroid gland which is located in front of the neck:

...

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Thyroxine: A hormone that is made by the thyroid gland and is one of the most important th...

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Trachea: A tube-like portion of the respiratory tract that connects the larynx with the br...

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Trigger: Something that either sets off a disease in people who are genetically predispose...

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Triiodothyronine: A hormone that is made by the thyroid gland. Triiodothyronine has three ...

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TSH: Thyroid stimulating hormone.

Viruses: Small living particles that can infect cells and change how the cells function. I...

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