macrosomiten.

Brit.

/ˌmakrəʊˈsəʊmʌɪt/, U.S.

/ˈˌmækroʊˈsoʊmaɪt/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: macro- comb. form, somite n.

Etymology: < macro- comb. form + somite n., after German Makrosomit (V. Graber 1888, in Morphol. Jahrb. 14 350). Compare microsomite n.

Entomology.

Any of several anatomical regions formed prior to the formation of true metameres during segmentation of the embryo of certain insects.

ΚΠ

1888 Amer. Naturalist 22 942 The head..is divided into..the primitive head-segment..and the gnathophorous macrosomite.

1964 R. M. Fox & J. W. Fox Introd. Compar. Entomol. vii. 229 The transverse ectodermal furrows do not appear in the same sequence in all embryos and sometimes the body is first marked off into regions (macrosomites) which then divide into the definitive metameres.

Derivatives

macrosoˈmitic adj. rare

ΚΠ

1888 Amer. Naturalist 22 941 The..primary or macrosomitic segmentation of the primitive body.

This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	macrosomite
释义	macrosomiten. Brit. /ˌmakrəʊˈsəʊmʌɪt/, U.S. /ˈˌmækroʊˈsoʊmaɪt/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: macro- comb. form, somite n. Etymology: < macro- comb. form + somite n., after German Makrosomit (V. Graber 1888, in Morphol. Jahrb. 14 350). Compare microsomite n. Entomology. Any of several anatomical regions formed prior to the formation of true metameres during segmentation of the embryo of certain insects. ΚΠ 1888 Amer. Naturalist 22 942 The head..is divided into..the primitive head-segment..and the gnathophorous macrosomite. 1964 R. M. Fox & J. W. Fox Introd. Compar. Entomol. vii. 229 The transverse ectodermal furrows do not appear in the same sequence in all embryos and sometimes the body is first marked off into regions (macrosomites) which then divide into the definitive metameres. Derivatives macrosoˈmitic adj. rare ΚΠ 1888 Amer. Naturalist 22 941 The..primary or macrosomitic segmentation of the primitive body. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1888
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