mesorchiumn.

Brit.

/mɛsˈɔːkɪəm/, U.S.

/mɛzˈɔrkiəm/; see also meso- comb. form.

Origin: A borrowing from Greek, combined with English elements. Etymons: meso- comb. form, Greek ὄρχις, English -um.

Etymology: < meso- comb. form + ancient Greek ὄρχις testicle (see orchis n.) + -um, after Latin nouns with this ending.

Anatomy and Zoology.

The mesentery that supports the testis in the embryo or (in some taxa) adult male vertebrate; a residual fold of peritoneum between the testis and epididymis in other adult male vertebrates.

ΚΠ

1853 R. Dunglison Med. Lexicon (ed. 9) 557/2 Mesorchium,..a duplicature of the peritoneum, which supports the testicle in its passage from the abdomen into the scrotum.

1875 T. H. Huxley & H. N. Martin Course Elem. Biol. (1877) 183 A sort of testicular mesentery or mesorchium.

1926 Q. Rev. Biol. 1 11/2 Davis has recently enumerated as causes for lack of scrotal descent (1) defects in the mesorchium, [etc.].

1964 L. Martin Clin. Endocrinol. (ed. 4) vii. 230 At first [the testes are] held on the posterior abdominal wall by a peritoneal fold (mesorchium).

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) x. 320 The testes or ovaries, formed from the genital ridges of the embryo, usually expand into the body cavity, surrounded by its peritoneum, and may be supported by special mesenteries—mesorchium or mesovarium.

1997 G. S. Helfman et al. Diversity of Fishes iv. 47/1 They [sc. the testes] are suspended by lengthwise mesenteries known as mesorchia.

Derivatives

meˈsorchial adj.

ΚΠ

1875 Encycl. Brit. I. 768/2 The mesoarial and mesorchial folds of the peritoneum.

1997 Brit. Jrnl. Urol. 79 449 Three groups of 15 adult rats underwent a 720 degree torsion, with fixation of the mesorchial ligament, for 1, 3 or 5 h.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	mesorchium
释义	mesorchiumn. Brit. /mɛsˈɔːkɪəm/, U.S. /mɛzˈɔrkiəm/; see also meso- comb. form. Origin: A borrowing from Greek, combined with English elements. Etymons: meso- comb. form, Greek ὄρχις, English -um. Etymology: < meso- comb. form + ancient Greek ὄρχις testicle (see orchis n.) + -um, after Latin nouns with this ending. Anatomy and Zoology. The mesentery that supports the testis in the embryo or (in some taxa) adult male vertebrate; a residual fold of peritoneum between the testis and epididymis in other adult male vertebrates. ΚΠ 1853 R. Dunglison Med. Lexicon (ed. 9) 557/2 Mesorchium,..a duplicature of the peritoneum, which supports the testicle in its passage from the abdomen into the scrotum. 1875 T. H. Huxley & H. N. Martin Course Elem. Biol. (1877) 183 A sort of testicular mesentery or mesorchium. 1926 Q. Rev. Biol. 1 11/2 Davis has recently enumerated as causes for lack of scrotal descent (1) defects in the mesorchium, [etc.]. 1964 L. Martin Clin. Endocrinol. (ed. 4) vii. 230 At first [the testes are] held on the posterior abdominal wall by a peritoneal fold (mesorchium). 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) x. 320 The testes or ovaries, formed from the genital ridges of the embryo, usually expand into the body cavity, surrounded by its peritoneum, and may be supported by special mesenteries—mesorchium or mesovarium. 1997 G. S. Helfman et al. Diversity of Fishes iv. 47/1 They [sc. the testes] are suspended by lengthwise mesenteries known as mesorchia. Derivatives meˈsorchial adj. ΚΠ 1875 Encycl. Brit. I. 768/2 The mesoarial and mesorchial folds of the peritoneum. 1997 Brit. Jrnl. Urol. 79 449 Three groups of 15 adult rats underwent a 720 degree torsion, with fixation of the mesorchial ligament, for 1, 3 or 5 h. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1853
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