rhabdomn.

Brit.

/ˈrabdəm/,

/ˈrabdəʊm/, U.S.

/ˈræbdəm/,

/ˈræbdoʊm/

Forms: 1900s– rhabdom, 1900s– rhabdome.

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

Etymology: < German Rhabdom (1878 or earlier) < Byzantine Greek ῥάβδωμα rod or bundle of rods < ancient Greek ῥάβδος rod (see rhabdo- comb. form) + -ωμα (see -ome comb. form).

Zoology.

A translucent cylinder forming part of the light-sensitive receptor in the compound eyes of insects, crustaceans, and cephalopod molluscs, consisting of the closely packed or fused rhabdomeres of adjacent retinula cells.

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > head > eye > rhabdom

rhabdom1878

1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 264 The rods..become united, and form a special structure, the ‘rhabdom’ [Ger. Rhabdom], in the long axis of a group of combined retinal cells.

1905 Proc. Acad. Nat. Sci. Philadelphia 57 126 Each of the retinular cells has become differentiated on its inner face to form a part of the rhabdome which extends from the apex of the cone to the distal side of the basement membrane.

1958 Jrnl. Biophysical & Biochem. Cytol. 4 836/1 The retina [in Octopus and Sepia] is made up of rhabdomes analogous to those of the arthropod compound eyes.

2007 New Scientist 6 Jan. 38/3 At the centre of the eye, light-sensing tubes called rhabdoms absorb the incoming photons and perform the function of both rods and cones in vertebrates.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rhabdom
释义	rhabdomn. Brit. /ˈrabdəm/, /ˈrabdəʊm/, U.S. /ˈræbdəm/, /ˈræbdoʊm/ Forms: 1900s– rhabdom, 1900s– rhabdome. Origin: A borrowing from German. Etymon: German Rhabdom. Etymology: < German Rhabdom (1878 or earlier) < Byzantine Greek ῥάβδωμα rod or bundle of rods < ancient Greek ῥάβδος rod (see rhabdo- comb. form) + -ωμα (see -ome comb. form). Zoology. A translucent cylinder forming part of the light-sensitive receptor in the compound eyes of insects, crustaceans, and cephalopod molluscs, consisting of the closely packed or fused rhabdomeres of adjacent retinula cells. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > head > eye > rhabdom rhabdom1878 1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 264 The rods..become united, and form a special structure, the ‘rhabdom’ [Ger. Rhabdom], in the long axis of a group of combined retinal cells. 1905 Proc. Acad. Nat. Sci. Philadelphia 57 126 Each of the retinular cells has become differentiated on its inner face to form a part of the rhabdome which extends from the apex of the cone to the distal side of the basement membrane. 1958 Jrnl. Biophysical & Biochem. Cytol. 4 836/1 The retina [in Octopus and Sepia] is made up of rhabdomes analogous to those of the arthropod compound eyes. 2007 New Scientist 6 Jan. 38/3 At the centre of the eye, light-sensing tubes called rhabdoms absorb the incoming photons and perform the function of both rods and cones in vertebrates. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1878
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