a potent androgenic hormone produced chiefly by the testes; responsible for the development of male secondary sex characteristics
Steroid hormone produced primarily in the testes of the male; it is responsible for the development of secondary sex characteristics in the male.
Manly behavior, often of an aggressive or foolishly reckless nature.
Mother encouraged James to rely more on intelligence and less on testosterone to deal with the neighbor's son.
Testosterone is a steroid hormone from the androgen group and is found in mammals, reptiles, birds, and other vertebrates. In mammals, testosterone is primarily secreted in the testicles of males and the ovaries of females, although small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid. In men, testosterone plays a key role in the development of male reproductive tissues such as the testis and prostate as well as promoting secondary sexual characteristics such as increased muscle, bone mass, and the growth of body hair. In addition, testosterone is essential for health and well-being as well as the prevention of osteoporosis. On average, in adult human males, the plasma concentration of testosterone is about 7–8 times as great as the concentration in adult human females' plasma, but as the metabolic consumption of testosterone in males is greater, the daily production is about 20 times greater in men. Females are also more sensitive to the hormone. Testosterone is observed in most vertebrates. Fish make a slightly different form called 11-ketotestosterone. Its counterpart in insects is ecdysone. These ubiquitous steroids suggest that sex hormones have an ancient evolutionary history.
U.S. National Library of Medicine
A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL.
The numerical value of testosterone in Chaldean Numerology is: 9
The numerical value of testosterone in Pythagorean Numerology is: 4
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Translations for testosterone
From our Multilingual Translation Dictionary
- тестостѐро̄н, testostèrōnSerbo-Croatian
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"testosterone." Definitions.net. STANDS4 LLC, 2018. Web. 17 Jan. 2018. <http://www.definitions.net/definition/testosterone>.