ommatidium meaning in Hindi

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R1 through R9 . These " R cells " tightly pack the ommatidium.
The pigment cells line the outside of each ommatidium.
The cornea and pseudocone form the outer ten percent of the length of the ommatidium.
Each ommatidium contains eight photoreceptor cells ( R1-8 ), support cells, pigment cells, and a cornea.
Simultaneously, the rhabdomeres in adjacent ommatidia are aligned such that the field of view within an ommatidium is the same as that between ommatidia.
The portion of the R cells at the central axis of the ommatidium collectively form a light guide, a transparent tube, called the rhabdom.
Hartline contrasted the response signal of the ommatidium when a single concentrated beam of light was directed at one receptor unit as opposed to three surrounding units.
To prevent light entering at an angle from being detected by the ommatidium it entered, or by any of the neighboring ommatidia, six pigment cells are present.
Hence the one ommatidium at the apex of the triangle was the original " eye " of the larval organism, with subsequent rows added as the organism grew.
The typical apposition eye has a lens focusing light from one direction on the rhabdom, while light from other directions is absorbed by the dark wall of the ommatidium.

noun.

any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods