mesostethiumn.

Brit.

/ˌmɛsə(ʊ)ˈstiːθɪəm/, U.S.

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

Origin: A borrowing from Greek, combined with English elements. Etymons: meso- comb. form, Greek στῆθος , -ium suffix.

Etymology: < meso- comb. form + ancient Greek στῆθος chest (see stetho- comb. form) + -ium suffix. Compare ancient Greek στηθίον little breast. Compare peristethium n. at peri- prefix 2b.

Entomology. rare.

In certain insects: a region of the ventral part of the metathorax, just in front of the coxae of the posterior legs.

ΚΠ

1826 W. Kirby & W. Spence Introd. Entomol. III. xxxiii. 382 Mesostethium... A central piece between the intermediate and posterior legs, and bounded laterally in Coleoptera by the Parapleuræ—along the middle of which, where it exists, the Metasternum runs.

1995 Acta Entomologica Sinica 38 83 Rostrum yellowish brown, apex black, reaching to middle of rostral groove on mesostethium, the rostral groove shallow, lateral ridges low [etc.].

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

单词	mesostethium
释义	mesostethiumn. Brit. /ˌmɛsə(ʊ)ˈstiːθɪəm/, U.S. /ˌmɛzoʊˈstiθiəm/; see also meso- comb. form. Origin: A borrowing from Greek, combined with English elements. Etymons: meso- comb. form, Greek στῆθος , -ium suffix. Etymology: < meso- comb. form + ancient Greek στῆθος chest (see stetho- comb. form) + -ium suffix. Compare ancient Greek στηθίον little breast. Compare peristethium n. at peri- prefix 2b. Entomology. rare. In certain insects: a region of the ventral part of the metathorax, just in front of the coxae of the posterior legs. ΚΠ 1826 W. Kirby & W. Spence Introd. Entomol. III. xxxiii. 382 Mesostethium... A central piece between the intermediate and posterior legs, and bounded laterally in Coleoptera by the Parapleuræ—along the middle of which, where it exists, the Metasternum runs. 1995 Acta Entomologica Sinica 38 83 Rostrum yellowish brown, apex black, reaching to middle of rostral groove on mesostethium, the rostral groove shallow, lateral ridges low [etc.]. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). < n.1826
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