reticulum
Americannoun
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a network; any reticulated system or structure.
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Anatomy.
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a network of intercellular fibers in certain tissues.
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a network of structures in the endoplasm or nucleus of certain cells.
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Zoology. the second stomach of ruminating animals, between the rumen and the omasum.
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(initial capital letter) the Net, a southern constellation between Dorado and Hydrus.
noun
noun
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any fine network, esp one in the body composed of cells, fibres, etc
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the second compartment of the stomach of ruminants, situated between the rumen and psalterium
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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.
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See more at ruminant
Other Word Forms
Etymology
Origin of reticulum
First recorded in 1650–60; from Latin rēticulum “little net”; see reticle
Explanation
A reticulum is a natural structure that resembles a net or web, like the veins in a leaf or the network of fibers in a cell. You can use reticulum for anything in nature with a structure that looks like a net. In fact, the Latin meaning of the word is "a little net." Reticulum has been adopted for many scientific uses, including the name of a net-like constellation. A cow or other ruminant's second (of four) stomachs is also called a reticulum, from the honeycomb shape of its lining.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.