mesosternumn.

Brit.

/ˌmɛsə(ʊ)ˈstəːnəm/, U.S.

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

Inflections: Plural mesosterna.

Origin: Formed within English, by compounding. Etymons: meso- comb. form, sternum n.

Etymology: < meso- comb. form + sternum n.

1. Entomology. The sternum of the mesothorax of an insect or (esp. formerly) an equivalent or associated part. Also (in Zoology): the middle plate of the sternum in brachyuran crabs.

ΚΠ

1826 W. Kirby & W. Spence Introd. Entomol. III. 566 The central part of the medipectus, or that which passes between the mid-legs when elevated, protruded, or otherwise remarkable, is called the mesosternum or mid-breast-bone.

1836 W. E. Shuckard tr. H. Burmeister Man. Entomol. 82 The mesosternum (peristethium of Kirby and Spence), is, as well as the scapulæ, divided into two parts.

1884 Trans. Entomol. Soc. 503 Sternopleural suture, horizontal suture below the dorsopleural and parallel to it; separates the mesopleura from the mesosternum.

1944 R. Matheson Entomol. for Introd. Courses iii. 53 The metasternum bears a median quadrate lobe which fits into the notch of the mesosternum.

1969 R. F. Chapman Insects viii. 131 Four basic arrangements may be found:..c) eusternum of prothorax and first spina also fuse so that there are now three main elements—compound prosternum; compound mesosternum; eusternum of metathorax.

1988 I. Gauld & B. Bolton Hymenoptera (1996) v. 64 The area between the precoxal suture and the medial sternal groove is commonly called the mesosternum, though it is not homologous with the definitive mesosternum, which is probably reduced or invaginated in most hymenopterans.

1992 M. Stachowitsch Invertebr. 467/1 Mesosternum, on underside of cephalothorax in crab-like (brachyuran) decapod, median plate of sternum.

2. Anatomy and Zoology. The body of the sternum, situated between the manubrium and the xiphisternum.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > breastbone > [noun] > parts of

heartspoonc1405

spoon of the brisket1575

manubrium1705

xiphisternal1835

episternum1840

mesosternal1854

mesosternum1868

presternum1868

xiphisternum1872

sternebra1881

mesosterneber1890

mesosternebra1890

sternite1916

1868 W. K. Parker Monogr. Struct. & Devel. Shoulder-girdle & Sternum Vertebrata 71 The three great divisions into manubrium (præ-sternum), body (mesosternum), and xiphoid process (xiphisternum) are marked out.

1872 H. A. Nicholson Man. Palæontol. 399 All the other ribs are connected with the mesosternum.

1912 Jrnl. Royal Anthropol. Inst. 42 135 The manubrium is 47 mm. long by 50 mm. wide, the meso-sternum 66 mm. × 26 mm. In size and proportion the thorax and sternum are those of a woman.

1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xviii. 265 To the posterior ends of the epicoracoids is attached the bony mesosternum, bearing at its posterior end the cartilaginous xiphosternum.

1998 Jrnl. Pediatric Orthopaedics 18 398 The xiphoid process remains connected to the most caudal mesosternum via a common zone of hyaline cartilage that ossifies by middle to late adulthood.

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

单词	mesosternum
释义	mesosternumn. Brit. /ˌmɛsə(ʊ)ˈstəːnəm/, U.S. /ˌmɛzoʊˈstərnəm/; see also meso- comb. form. Inflections: Plural mesosterna. Origin: Formed within English, by compounding. Etymons: meso- comb. form, sternum n. Etymology: < meso- comb. form + sternum n. 1. Entomology. The sternum of the mesothorax of an insect or (esp. formerly) an equivalent or associated part. Also (in Zoology): the middle plate of the sternum in brachyuran crabs. ΚΠ 1826 W. Kirby & W. Spence Introd. Entomol. III. 566 The central part of the medipectus, or that which passes between the mid-legs when elevated, protruded, or otherwise remarkable, is called the mesosternum or mid-breast-bone. 1836 W. E. Shuckard tr. H. Burmeister Man. Entomol. 82 The mesosternum (peristethium of Kirby and Spence), is, as well as the scapulæ, divided into two parts. 1884 Trans. Entomol. Soc. 503 Sternopleural suture, horizontal suture below the dorsopleural and parallel to it; separates the mesopleura from the mesosternum. 1944 R. Matheson Entomol. for Introd. Courses iii. 53 The metasternum bears a median quadrate lobe which fits into the notch of the mesosternum. 1969 R. F. Chapman Insects viii. 131 Four basic arrangements may be found:..c) eusternum of prothorax and first spina also fuse so that there are now three main elements—compound prosternum; compound mesosternum; eusternum of metathorax. 1988 I. Gauld & B. Bolton Hymenoptera (1996) v. 64 The area between the precoxal suture and the medial sternal groove is commonly called the mesosternum, though it is not homologous with the definitive mesosternum, which is probably reduced or invaginated in most hymenopterans. 1992 M. Stachowitsch Invertebr. 467/1 Mesosternum, on underside of cephalothorax in crab-like (brachyuran) decapod, median plate of sternum. 2. Anatomy and Zoology. The body of the sternum, situated between the manubrium and the xiphisternum. ΘΚΠ the world > life > the body > structural parts > bone or bones > breastbone > [noun] > parts of heartspoonc1405 spoon of the brisket1575 manubrium1705 xiphisternal1835 episternum1840 mesosternal1854 mesosternum1868 presternum1868 xiphisternum1872 sternebra1881 mesosterneber1890 mesosternebra1890 sternite1916 1868 W. K. Parker Monogr. Struct. & Devel. Shoulder-girdle & Sternum Vertebrata 71 The three great divisions into manubrium (præ-sternum), body (mesosternum), and xiphoid process (xiphisternum) are marked out. 1872 H. A. Nicholson Man. Palæontol. 399 All the other ribs are connected with the mesosternum. 1912 Jrnl. Royal Anthropol. Inst. 42 135 The manubrium is 47 mm. long by 50 mm. wide, the meso-sternum 66 mm. × 26 mm. In size and proportion the thorax and sternum are those of a woman. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xviii. 265 To the posterior ends of the epicoracoids is attached the bony mesosternum, bearing at its posterior end the cartilaginous xiphosternum. 1998 Jrnl. Pediatric Orthopaedics 18 398 The xiphoid process remains connected to the most caudal mesosternum via a common zone of hyaline cartilage that ossifies by middle to late adulthood. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1826
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