Retinula
Retinula Re*tin"u*la, n.; pl. {Retinul[ae]}. [NL., dim. of NL. & E. retina.] (Zo["o]l.) One of the group of pigmented cells which surround the retinophor[ae] of invertebrates. See Illust. under {Ommatidium}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • retinula — retinular, adj. /ri tin yeuh leuh/, n., pl. retinulae / lee /. n. Anat. a group of elongate neural receptor cells forming part of an arthropod compound eye: each retinula cell leads to a nerve fiber passing to the optic ganglion. [1875 80; < NL;… …   Universalium

  • retinula — noun (plural retinulae; also las) Etymology: New Latin, diminutive of Medieval Latin retina Date: 1878 the neural receptor of a single facet of an arthropod compound eye • retinular adjective …   New Collegiate Dictionary

  • retinula — n.; pl. lae [L. dim. rete, net] 1. Sensory neuron in the eye. 2. (ARTHROPODA) A group of cells and their associated rhabdoms that are surrounded by a sheath of pigment cells containing dense granules of red, yellow or brown pigments making up… …   Dictionary of invertebrate zoology

  • retinula — re·tin·u·la …   English syllables

  • retinula — re•tin•u•la [[t]rɪˈtɪn yə lə[/t]] n. pl. lae [[t] ˌli[/t]] anat. ivt a group of elongate neural receptor cells forming part of an arthropod compound eye • Etymology: 1875–80; < NL; see retina, ule re•tin′u•lar, adj …   From formal English to slang

  • retinula — …   Useful english dictionary

  • Retinulae — Retinula Re*tin u*la, n.; pl. {Retinul[ae]}. [NL., dim. of NL. & E. retina.] (Zo[ o]l.) One of the group of pigmented cells which surround the retinophor[ae] of invertebrates. See Illust. under {Ommatidium}. [1913 Webster] …   The Collaborative International Dictionary of English

  • insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… …   Universalium

  • Superpositionsauge — Als Superpositionsauge bezeichnet man ein Facettenauge, bei dem die einzelnen Ommatidien nicht in der ganzen Länge voneinander abgeschirmt sind. Es kommt hauptsächlich bei nachtaktiven Insekten, wie etwa den Nachtfaltern vor. Der Hauptunterschied …   Deutsch Wikipedia

  • Atlantic horseshoe crab — Conservation status Near Threatened ( …   Wikipedia

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