ruminant

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ruminant

 [roo´mĭ-nant]
1. chewing the cud.
2. an animal that has a stomach with four complete cavities, and that characteristically regurgitates undigested food from the rumen, the first stomach, and masticates it when at rest.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ru·mi·nant

(rū'mi-nănt),
An animal that chews the cud, material regurgitated from the rumen for rechewing; for example, the sheep, cow, deer, or antelope.
Farlex Partner Medical Dictionary © Farlex 2012

ruminant

(ro͞o′mə-nənt)
n.
1. Any of various hoofed, even-toed, usually horned mammals of the suborder Ruminantia, such as cattle, sheep, deer, antelopes, and giraffes, characteristically having a stomach divided into four compartments and chewing a cud that consists of plant food that is regurgitated when partially digested.
2. Any of various animals that ruminate but are not in the Ruminantia, including camels, alpacas, and llamas.
adj.
1. Characterized by the chewing of cud.
2. Of or belonging to the Ruminantia.
3. Meditative; contemplative.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ruminant

any mammal of the suborder Pecora, (deer, giraffes, antelopes, sheep, goats, cows) of the order ARTIODACTYLA. They usually possess horns in the males, lack incisors in the upper jaw and have a four-compartmented stomach which includes the RUMEN, from which they regurgitate food in order to chew it.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005