gonadn.

Brit.

/ˈɡəʊnad/,

/ˈɡɒnad/, U.S.

/ˈɡoʊˌnæd/

Etymology: < Greek γονή, γόνος generation, seed, etc. + -ad suffix¹, after modern Latin gonas, plural gonades.

Biology.

Any organ in an animal (as a testis or an ovary) that produces gametes.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes > gonad

gonad1880

1880 E. R. Lankester in Nature 17 June 147/2 Having its genital sacs or gonads placed in the course of the radial canals.

1887 Athenæum 29 Oct. 572/1 Groups..having the nephridia functioning as efferent ducts for the gonads.

1900 J. S. Kingsley Text Bk. Vertebr. Zool. 125 The ovaries are those gonads which are to give rise to the eggs or ova.

1927 J. B. S. Haldane & J. S. Huxley Animal Biol. ix. 191 The changes which take place in body and mind at puberty are also under the control of the endocrine system. The immediate control is exerted by the gonad itself.

1957 O. W. Richards & R. G. Davies Imms's Gen. Textbk. Entomol. (ed. 9) i. 193 The hermaphrodite reproductive system is not unlike the usual female condition but the gonad..produces both spermatozoa and eggs.

1957 Times 3 Sept. 9/2 The report of a study group on the effect of radiation on human heredity says that in every exposure the X-ray beam should..be so directed that a minimum of radiation reaches the gonads.

1962 D. J. B. Ashley Human Intersex iii. 34 The gonads, testes and ovaries, are the primary sex organs which house the definitive male and female germ cells which differentiate to form the gametes.

1964 T. J. Parker & W. A. Haswell Text-bk. Zool. (ed. 7) II. 318 The gonads are of great size in the sexually mature fish.

Derivatives

gonadal adj.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad

perigonadial1888

gonadial1902

gonadic1925

gonadotrophic1931

gonadal1934

1934 Webster's New Internat. Dict. Eng. Lang. Gonadal.

1946 Nature 20 July 95/2 Trichloracetic acid filtrates of serum were prepared during an investigation of the effects of gonadal hormones on the mineral metabolism of the immature pullet.

1963 Lancet 5 Jan. 3/2 There is no evidence in favour of transplants of gonadal tissue rejuvenating the senescent human.

gonadial adj.

/ɡəʊˈneɪdəl//-dɪəl/

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad

perigonadial1888

gonadial1902

gonadic1925

gonadotrophic1931

gonadal1934

1902 A. Sedgwick in Encycl. Brit. XXVIII. 138/1 Formation..of gonadial sacs.

1914 P. Geddes Sex iv. 88 The gonadial glands of internal secretion.

gonadic adj.

/ɡəʊˈnædɪk/ of or relating to the gonads.

ΘΚΠ

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad

perigonadial1888

gonadial1902

gonadic1925

gonadotrophic1931

gonadal1934

1925 F. A. E. Crew Animal Genetics 198 The animals which were merely castrated failed to develop the secondary gonadic characters which they would presumably have shown otherwise.

gonaˈdectomy n. [-ectomy comb. form] excision of a gonad.

ΚΠ

1925 F. A. E. Crew Animal Genetics 194 The operation of gonadectomy (extirpation of the sex-gland).

ˈgonaduct n. (for gonad-duct: cf. quot. 1887 at main sense above).

ΚΠ

1888 Lankester in Encycl. Brit. XXIV. 183/1 Nephridia (modified in some as gonaducts).

This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).

单词	gonad
释义	gonadn. Brit. /ˈɡəʊnad/, /ˈɡɒnad/, U.S. /ˈɡoʊˌnæd/ Etymology: < Greek γονή, γόνος generation, seed, etc. + -ad suffix¹, after modern Latin gonas, plural gonades. Biology. Any organ in an animal (as a testis or an ovary) that produces gametes. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes > gonad gonad1880 1880 E. R. Lankester in Nature 17 June 147/2 Having its genital sacs or gonads placed in the course of the radial canals. 1887 Athenæum 29 Oct. 572/1 Groups..having the nephridia functioning as efferent ducts for the gonads. 1900 J. S. Kingsley Text Bk. Vertebr. Zool. 125 The ovaries are those gonads which are to give rise to the eggs or ova. 1927 J. B. S. Haldane & J. S. Huxley Animal Biol. ix. 191 The changes which take place in body and mind at puberty are also under the control of the endocrine system. The immediate control is exerted by the gonad itself. 1957 O. W. Richards & R. G. Davies Imms's Gen. Textbk. Entomol. (ed. 9) i. 193 The hermaphrodite reproductive system is not unlike the usual female condition but the gonad..produces both spermatozoa and eggs. 1957 Times 3 Sept. 9/2 The report of a study group on the effect of radiation on human heredity says that in every exposure the X-ray beam should..be so directed that a minimum of radiation reaches the gonads. 1962 D. J. B. Ashley Human Intersex iii. 34 The gonads, testes and ovaries, are the primary sex organs which house the definitive male and female germ cells which differentiate to form the gametes. 1964 T. J. Parker & W. A. Haswell Text-bk. Zool. (ed. 7) II. 318 The gonads are of great size in the sexually mature fish. Derivatives gonadal adj. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad perigonadial1888 gonadial1902 gonadic1925 gonadotrophic1931 gonadal1934 1934 Webster's New Internat. Dict. Eng. Lang. Gonadal. 1946 Nature 20 July 95/2 Trichloracetic acid filtrates of serum were prepared during an investigation of the effects of gonadal hormones on the mineral metabolism of the immature pullet. 1963 Lancet 5 Jan. 3/2 There is no evidence in favour of transplants of gonadal tissue rejuvenating the senescent human. gonadial adj. /ɡəʊˈneɪdəl//-dɪəl/ ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad perigonadial1888 gonadial1902 gonadic1925 gonadotrophic1931 gonadal1934 1902 A. Sedgwick in Encycl. Brit. XXVIII. 138/1 Formation..of gonadial sacs. 1914 P. Geddes Sex iv. 88 The gonadial glands of internal secretion. gonadic adj. /ɡəʊˈnædɪk/ of or relating to the gonads. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > gonad perigonadial1888 gonadial1902 gonadic1925 gonadotrophic1931 gonadal1934 1925 F. A. E. Crew Animal Genetics 198 The animals which were merely castrated failed to develop the secondary gonadic characters which they would presumably have shown otherwise. gonaˈdectomy n. [-ectomy comb. form] excision of a gonad. ΚΠ 1925 F. A. E. Crew Animal Genetics 194 The operation of gonadectomy (extirpation of the sex-gland). ˈgonaduct n. (for gonad-duct: cf. quot. 1887 at main sense above). ΚΠ 1888 Lankester in Encycl. Brit. XXIV. 183/1 Nephridia (modified in some as gonaducts). This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022). < n.1880
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