| 释义 |
Definition of gonad in English: gonadnoun ˈɡəʊnadˈɡoʊnæd Zoology Physiology 1An organ that produces gametes; a testis or ovary. Example sentencesExamples - To compensate, internal organs such as the gizzard, gonads, and intestine may shrink.
- As adults they lack appendages, segmentation, and all internal organs except gonads and the remains of the nervous system.
- Fish were scored as intersexes when at least one of the gonads was an ovotestis or when one ovary and one testis were observed simultaneously.
- It is known as a gonadotrophic hormone as it affects the gonads (testes and ovaries) in mammals.
- Whether the gonads become ovaries or testes is determined by the chromosomes received from the parents at the time of conception.
- 1.1gonadsvulgar slang A man's testicles or genitals.
Derivatives adjectiveɡə(ʊ)ˈneɪd(ə)l For example, gonadotropins that are produced by the hypothalamic-pituitary gland stimulate secretion of gonadal steroids. Example sentencesExamples - Females develop an extrusion of the gonadal papilla and a distended abdomen when gravid.
- In birds and mammals, gonadal steroids can directly affect sensory functions, selective attention, persistence of attention, and have independent rewarding properties in the brain.
- Chronically stressed mammals produce hormones called glucocorticoids, which can suppress certain immune-system and gonadal functions when the hormones remain elevated.
- Nutrition, exercise, gonadal steroids, and growth hormone and body composition all play a role in bone density.
Origin Late 19th century: from modern Latin gonades, plural of gonas, from Greek gonē 'generation, seed'. Definition of gonad in US English: gonadnounˈɡōnadˈɡoʊnæd Physiology Zoology 1An organ that produces gametes; a testis or ovary. Example sentencesExamples - As adults they lack appendages, segmentation, and all internal organs except gonads and the remains of the nervous system.
- To compensate, internal organs such as the gizzard, gonads, and intestine may shrink.
- It is known as a gonadotrophic hormone as it affects the gonads (testes and ovaries) in mammals.
- Fish were scored as intersexes when at least one of the gonads was an ovotestis or when one ovary and one testis were observed simultaneously.
- Whether the gonads become ovaries or testes is determined by the chromosomes received from the parents at the time of conception.
- 1.1gonadsvulgar slang A man's testicles or genitals.
Origin Late 19th century: from modern Latin gonades, plural of gonas, from Greek gonē ‘generation, seed’. |