Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A rodlike structure in the center of each ommatidium in the compound eye of an arthropod, composed of microvilli extending from the surrounding retinular cells.

from The Century Dictionary.

  • noun In entomology, a special structure in the eye, consisting of a concrescence of the rods developed on the cells of the retina, when these cells are themselves united in a retinula.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) One of numerous minute rodlike structures formed of two or more cells situated behind the retinulæ in the compound eyes of insects, etc. See Illust. under ommatidium.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any of the rods that support each ommatidium in the compound eye of arthropods

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From Greek rhabdōma, bundle of rods, from Greek rhabdos, rod; see rhabdomancy.]

Examples

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