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[ri-tik-yuh-luh m] /rɪˈtɪk yə ləm/
noun, plural reticula
[ri-tik-yuh-luh] /rɪˈtɪk yə lə/ (Show IPA),
for 1–3, genitive reticuli
[ri-tik-yuh-lahy] /rɪˈtɪk yəˌlaɪ/ (Show IPA),
for 4.
a network; any reticulated system or structure.
  1. a network of intercellular fibers in certain tissues.
  2. a network of structures in the endoplasm or nucleus of certain cells.
Zoology. the second stomach of ruminating animals, between the rumen and the omasum.
(initial capital letter) Astronomy. the Net, a southern constellation between Dorado and Hydrus.
Origin of reticulum
1650-60; < Latin rēticulum little net; see reticle Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for reticulum
Contemporary Examples
  • This dish is based on the beautiful white honeycomb tripe, which comes from the second stomach, or the reticulum, of an ox.

    What to Eat: Offal January 26, 2010
Historical Examples
British Dictionary definitions for reticulum


noun (pl) -la (-lə)
any fine network, esp one in the body composed of cells, fibres, etc
the second compartment of the stomach of ruminants, situated between the rumen and psalterium
Word Origin
C17: from Latin: little net, from rēte net


noun (Latin genitive) Reticuli (rɪˈtɪkjʊˌlaɪ)
a small constellation in the S hemisphere lying between Dorado and Hydrus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for reticulum

1650s, "second stomach of a ruminant" (so called from the folds of the membrane), from Latin reticulum "a little net" (see reticulate (adj.)). The word was later given various uses in biology, cytology, histology, etc., and made a southern constellation by La Caille (1763).

Online Etymology Dictionary, © 2010 Douglas Harper
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reticulum in Medicine

reticulum re·tic·u·lum (rĭ-tĭk'yə-ləm)
n. pl. re·tic·u·la (-lə)

  1. A fine network formed by cells, by certain structures within cells, or by connective-tissue fibers between cells.

  2. See neuroglia.

  3. The second compartment of the stomach of ruminant mammals, lined with a membrane having honeycombed ridges.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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reticulum in Science
Plural reticula
The second division of the stomach in ruminant animals, which together with the rumen contains microorganisms that digest fiber. The reticulum's contents are regurgitated for further chewing as part of the cud. See more at ruminant.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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