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
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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
noun
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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.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The team explains that the high local temperature activates the other active agent, BNN-6, to release nitric oxide molecules that open the channel in the endoplasmic reticulum.
From Science Daily • Jan. 29, 2024
Moreover, abnormal mitochondrial metabolism and endoplasmic reticulum stress are hallmarks of various disorders, such as cardiac diseases, Alzheimer's, Parkinson's, and cancer.
From Science Daily • Jan. 16, 2024
Their examination revealed that the CARS-deficient yeast mutant suffered from abnormal mitochondrial energy metabolism, as well as an increased stress response throughout the endoplasmic reticulum.
From Science Daily • Jan. 16, 2024
The cleavage of SREBP-1c occurs in the endoplasmic reticulum, with the rhomboid protease RHBDL4, located in the ER membrane, identified as a new cleavage enzyme for SREBP-1c.
From Science Daily • Jan. 13, 2024
Of the four stomachs, the rumen was full of food, the reticulum, the omasum, and the abomasum exhibited purple or livid spots, according to their place.
From On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment by Bourguignon, Honor?
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.