ommochromen.

Brit.

/ˈɒmə(ʊ)krəʊm/, U.S.

/ˈɑməˌkroʊm/

Origin: A borrowing from German. Etymon: German Ommochrom.

Etymology: < German Ommochrom (E. Becker 1942, in Zeitschr. f. indukt. Abstammungs- u. Vererbungslehre 80 179: compare ommin n., ommatin n.) < ancient Greek ὄμμα eye (see ommateum n.) + German -o- -o- connective + -chrom -chrome comb. form.

Biochemistry.

Any of a group of invertebrate (chiefly arthropod) pigments derived by condensation reactions from kynurenine and giving yellow, red, and brownish body colours and commonly also found in the accessory cells of the eyes of insects.

ΘΚΠ

the world > life > biology > substance > pigment > [noun] > human or animal pigments > red or brown

porphobilin1939

ommatin1940

ommin1940

ommochrome1945

1945 Biol. Abstr. 19 450/1 The distribution of this new group of pigments, the ommochromes, among arthropods has been examined.

1965 B. E. Freeman tr. A. Vandel Biospeleol. xxv. 405 In the arthropods, melanines are replaced by ommochromes (ommines and ommatines).

1970 Nature 26 Dec. 1336/2 The integumental pigments of the isopod Crustacea are ommochromes.

1998 Proc. National Acad. Sci. U.S.A. 95 3743/1 Ommochrome pigments produce the deep purple color of the adult mosquito eye.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	ommochrome
释义	ommochromen. Brit. /ˈɒmə(ʊ)krəʊm/, U.S. /ˈɑməˌkroʊm/ Origin: A borrowing from German. Etymon: German Ommochrom. Etymology: < German Ommochrom (E. Becker 1942, in Zeitschr. f. indukt. Abstammungs- u. Vererbungslehre 80 179: compare ommin n., ommatin n.) < ancient Greek ὄμμα eye (see ommateum n.) + German -o- -o- connective + -chrom -chrome comb. form. Biochemistry. Any of a group of invertebrate (chiefly arthropod) pigments derived by condensation reactions from kynurenine and giving yellow, red, and brownish body colours and commonly also found in the accessory cells of the eyes of insects. ΘΚΠ the world > life > biology > substance > pigment > [noun] > human or animal pigments > red or brown porphobilin1939 ommatin1940 ommin1940 ommochrome1945 1945 Biol. Abstr. 19 450/1 The distribution of this new group of pigments, the ommochromes, among arthropods has been examined. 1965 B. E. Freeman tr. A. Vandel Biospeleol. xxv. 405 In the arthropods, melanines are replaced by ommochromes (ommines and ommatines). 1970 Nature 26 Dec. 1336/2 The integumental pigments of the isopod Crustacea are ommochromes. 1998 Proc. National Acad. Sci. U.S.A. 95 3743/1 Ommochrome pigments produce the deep purple color of the adult mosquito eye. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1945
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