fiber

noun
fi·​ber | \ ˈfī-bər How to pronounce fiber (audio) \

Definition of fiber

1 : a thread or a structure or object resembling a thread: such as
a(1) : a slender root (as of a grass)
(2) : an elongated tapering thick-walled plant cell void at maturity that imparts elasticity, flexibility, and tensile strength
b(1) : a strand of nerve tissue : axon, dendrite
(2) : one of the filaments composing most of the intercellular matrix of connective tissue
(3) : one of the elongated contractile cells of muscle tissue
c : a slender and greatly elongated natural or synthetic filament (as of wool, cotton, asbestos, gold, glass, or rayon) typically capable of being spun into yarn
d : mostly indigestible material in food (such as legumes, whole grains, and vegetables) that stimulates the intestine to peristalsis and promotes elimination of waste from the large intestine : bulk, roughage dietary fiber trying to get more fiber in her diet
2 : material made of fibers especially : vulcanized fiber
3a : an element that gives texture or substance
b : basic toughness : strength, fortitude
c : essential structure or character the very fiber of a person's being

Other Words from fiber

fibered \ ˈfī-​bərd How to pronounce fiber (audio) \ adjective

Examples of fiber in a Sentence

It's important to get enough fiber in your diet. What foods do you recommend as good sources of fiber? foods that are high in fiber The fabric is made from a mix of synthetic fibers. The natural fibers allow the fabric to breathe. The paper is made from both cotton and wood fiber. Nylon is a very strong man-made fiber. The police examined hair and bits of fiber found in the victim's car.
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Recent Examples on the Web Every fiber of Arbery’s shirt, which was white before he was shot, is stained a bright red. Shaddi Abusaid, ajc, 16 Nov. 2021 Per serving: 398 calories (46% from fat), 20.5 g fat (5.2 g saturated, 7 g monounsaturated), 108 mg cholesterol, 39.6 g protein, 8.9 g carbohydrates, 1.9 g fiber, 358 mg sodium. Tribune News Service, cleveland, 10 Nov. 2021 That includes a carbon-fiber steering wheel and carbon paddle shifters. Connor Hoffman, Car and Driver, 26 Oct. 2021 Amy Kimberlain, a licensed and registered dietitian nutritionist, said choosing a whole grain bread can contribute more protein and fiber. Taylor Avery, USA TODAY, 26 Oct. 2021 Chocolate and almonds are a decadent treat with some health infused from the good fats, protein and fiber in the nuts. Jessie Shafer, Better Homes & Gardens, 30 July 2021 That's because the old telephone lines leading into McNamee's house are too far from AT&T nodes to qualify for fiber-to-the-node service that provides faster speeds than basic DSL. Jon Brodkin, Ars Technica, 6 Nov. 2020 In the ensuing years, fiber-optic cables were laid to connect the country to the global internet. New York Times, 23 Oct. 2021 The DirecTV asset sale was the first in a string of deals struck this year to point the telephone giant away from the media business and toward its core cellular and fiber-optic services. Drew Fitzgerald, WSJ, 21 Oct. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fiber.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fiber

1607, in the meaning defined at sense 1

History and Etymology for fiber

Middle French fibre, from Latin fibra

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Dictionary Entries Near fiber

fibbery

fiber

fiberboard

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Statistics for fiber

Last Updated

19 Nov 2021

Cite this Entry

“Fiber.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiber. Accessed 27 Nov. 2021.

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More Definitions for fiber

fiber

noun

English Language Learners Definition of fiber

: plant material that cannot be digested but that helps you to digest other food
: a thin thread of natural or artificial material that can be used to make cloth, paper, etc.
: material (such as cloth) that is made from thin threads : something made of fibers

fiber

noun
fi·​ber | \ ˈfī-bər How to pronounce fiber (audio) \

Kids Definition of fiber

1 : a thread or a structure or object resembling a thread
2 : plant material that cannot be digested

fiber

noun
fi·​ber
variants: or chiefly British fibre \ ˈfī-​bər How to pronounce fiber (audio) \

Medical Definition of fiber

1 : a thread or a threadlike structure or object: as
a : a strand of nerve tissue : axon, dendrite
b : one of the filaments composing most of the intercellular matrix of connective tissue
c : one of the elongated contractile cells of muscle tissue
2 : mostly indigestible material in food that stimulates the intestine to peristalsis

called also bulk, dietary fiber, roughage

More from Merriam-Webster on fiber

Nglish: Translation of fiber for Spanish Speakers

Britannica English: Translation of fiber for Arabic Speakers

Britannica.com: Encyclopedia article about fiber

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