hyperthyroidism
noun
hy·per·thy·roid·ism ˌhī-pər-ˈthī-ˌrȯi-ˌdi-zəm 
: excessive functional activity of the thyroid gland
also : the resulting condition marked especially by increased metabolic rate, enlargement of the thyroid gland, rapid heart rate, and high blood pressure
Example Sentences
Recent Examples on the Web Or if there were serious conditions, such as hyperthyroidism, diabetes, depression, or cancer, that precipitated the weight loss instead. 
SELF, 29 Aug. 2022 Williams previously went on hiatus from the show in March 2018 and again in May 2020, due to complications with her Graves' disease and hyperthyroidism. Nicholas Rice, PEOPLE.com, 18 June 2022 Those with the following conditions may have an inadequate amount (though possibly not a serious deficiency): type 2 diabetes, renal disorders, gastrointestinal diseases, hyperthyroidism and alcohol dependency. Lisa Bain, Good Housekeeping, 12 June 2022 Similarly, a variety of others issues can lead to excessive sweating at night such as alcohol use, anxiety, autoimmune disorders, other types of infections, lymphoma, hyperthyroidism, and wearing 14 sweaters to bed. Bruce Y. Lee, Forbes, 1 May 2022 Last December, Noelle died suddenly of complications from hyperthyroidism; she was thought to be around 7-years-old. New York Times, 16 Mar. 2022 Graves’ disease is an immune system disorder that results in the overproduction of thyroid hormones or hyperthyroidism. Seth Abramovitch, The Hollywood Reporter, 10 Feb. 2022 These symptoms result from severe inflammation and expansion of the tissues behind the eye, usually as a result of hyperthyroidism or Graves’ disease. Saba Sile, Scientific American, 13 Apr. 2021 The most prominent of these was Otto Meckelburg, who originally approached Gröning in search of a cure for his wife’s hyperthyroidism. Richard J. Evans, The New Republic, 1 Dec. 2021 See More
SELF, 29 Aug. 2022 Williams previously went on hiatus from the show in March 2018 and again in May 2020, due to complications with her Graves' disease and hyperthyroidism. Nicholas Rice, PEOPLE.com, 18 June 2022 Those with the following conditions may have an inadequate amount (though possibly not a serious deficiency): type 2 diabetes, renal disorders, gastrointestinal diseases, hyperthyroidism and alcohol dependency. Lisa Bain, Good Housekeeping, 12 June 2022 Similarly, a variety of others issues can lead to excessive sweating at night such as alcohol use, anxiety, autoimmune disorders, other types of infections, lymphoma, hyperthyroidism, and wearing 14 sweaters to bed. Bruce Y. Lee, Forbes, 1 May 2022 Last December, Noelle died suddenly of complications from hyperthyroidism; she was thought to be around 7-years-old. New York Times, 16 Mar. 2022 Graves’ disease is an immune system disorder that results in the overproduction of thyroid hormones or hyperthyroidism. Seth Abramovitch, The Hollywood Reporter, 10 Feb. 2022 These symptoms result from severe inflammation and expansion of the tissues behind the eye, usually as a result of hyperthyroidism or Graves’ disease. Saba Sile, Scientific American, 13 Apr. 2021 The most prominent of these was Otto Meckelburg, who originally approached Gröning in search of a cure for his wife’s hyperthyroidism. Richard J. Evans, The New Republic, 1 Dec. 2021 See More Word History
Etymology
International Scientific Vocabulary
First Known Use
circa 1900, in the meaning defined above
Medical Definition
hyperthyroidism
noun
hy·per·thy·roid·ism -ˌrȯid-ˌiz-əm, -rəd-
: excessive functional activity of the thyroid gland
also : the resulting condition marked especially by increased metabolic rate, enlargement of the thyroid gland, rapid heart rate, and high blood pressure
called also thyrotoxicosis
see graves' disease